[{"quality_controlled":"1","main_file_link":[{"url":"https://doi.org/10.48550/arXiv.2210.06310","open_access":"1"}],"publisher":"American Physical Society","article_processing_charge":"No","doi":"10.1103/physrevb.108.125411","type":"journal_article","_id":"14320","date_updated":"2023-09-20T09:38:24Z","status":"public","publication":"Physical Review B","acknowledgement":"A.F.Y. acknowledges primary support from the Department of Energy under award DE-SC0020043, and additional support from the Gordon and Betty Moore Foundation under award GBMF9471 for group operations.","date_published":"2023-09-15T00:00:00Z","external_id":{"arxiv":["2210.06310"]},"year":"2023","abstract":[{"text":"The development of two-dimensional materials has resulted in a diverse range of novel, high-quality compounds with increasing complexity. A key requirement for a comprehensive quantitative theory is the accurate determination of these materials' band structure parameters. However, this task is challenging due to the intricate band structures and the indirect nature of experimental probes. In this work, we introduce a general framework to derive band structure parameters from experimental data using deep neural networks. We applied our method to the penetration field capacitance measurement of trilayer graphene, an effective probe of its density of states. First, we demonstrate that a trained deep network gives accurate predictions for the penetration field capacitance as a function of tight-binding parameters. Next, we use the fast and accurate predictions from the trained network to automatically determine tight-binding parameters directly from experimental data, with extracted parameters being in a good agreement with values in the literature. We conclude by discussing potential applications of our method to other materials and experimental techniques beyond penetration field capacitance.","lang":"eng"}],"intvolume":"       108","publication_status":"published","publication_identifier":{"eissn":["2469-9969"],"issn":["2469-9950"]},"title":"Deep learning extraction of band structure parameters from density of states: A case study on trilayer graphene","oa_version":"Preprint","day":"15","scopus_import":"1","author":[{"first_name":"Paul M","orcid":"0000-0002-5198-7445","id":"13C09E74-18D9-11E9-8878-32CFE5697425","full_name":"Henderson, Paul M","last_name":"Henderson"},{"id":"4AF46FD6-F248-11E8-B48F-1D18A9856A87","full_name":"Ghazaryan, Areg","last_name":"Ghazaryan","first_name":"Areg","orcid":"0000-0001-9666-3543"},{"first_name":"Alexander A.","full_name":"Zibrov, Alexander A.","last_name":"Zibrov"},{"first_name":"Andrea F.","full_name":"Young, Andrea F.","last_name":"Young"},{"first_name":"Maksym","orcid":"0000-0002-2399-5827","last_name":"Serbyn","id":"47809E7E-F248-11E8-B48F-1D18A9856A87","full_name":"Serbyn, Maksym"}],"date_created":"2023-09-12T07:12:12Z","article_type":"original","volume":108,"language":[{"iso":"eng"}],"oa":1,"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","citation":{"ieee":"P. M. Henderson, A. Ghazaryan, A. A. Zibrov, A. F. Young, and M. Serbyn, “Deep learning extraction of band structure parameters from density of states: A case study on trilayer graphene,” <i>Physical Review B</i>, vol. 108, no. 12. American Physical Society, 2023.","short":"P.M. Henderson, A. Ghazaryan, A.A. Zibrov, A.F. Young, M. Serbyn, Physical Review B 108 (2023).","ama":"Henderson PM, Ghazaryan A, Zibrov AA, Young AF, Serbyn M. Deep learning extraction of band structure parameters from density of states: A case study on trilayer graphene. <i>Physical Review B</i>. 2023;108(12). doi:<a href=\"https://doi.org/10.1103/physrevb.108.125411\">10.1103/physrevb.108.125411</a>","apa":"Henderson, P. M., Ghazaryan, A., Zibrov, A. A., Young, A. F., &#38; Serbyn, M. (2023). Deep learning extraction of band structure parameters from density of states: A case study on trilayer graphene. <i>Physical Review B</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physrevb.108.125411\">https://doi.org/10.1103/physrevb.108.125411</a>","mla":"Henderson, Paul M., et al. “Deep Learning Extraction of Band Structure Parameters from Density of States: A Case Study on Trilayer Graphene.” <i>Physical Review B</i>, vol. 108, no. 12, 125411, American Physical Society, 2023, doi:<a href=\"https://doi.org/10.1103/physrevb.108.125411\">10.1103/physrevb.108.125411</a>.","ista":"Henderson PM, Ghazaryan A, Zibrov AA, Young AF, Serbyn M. 2023. Deep learning extraction of band structure parameters from density of states: A case study on trilayer graphene. Physical Review B. 108(12), 125411.","chicago":"Henderson, Paul M, Areg Ghazaryan, Alexander A. Zibrov, Andrea F. Young, and Maksym Serbyn. “Deep Learning Extraction of Band Structure Parameters from Density of States: A Case Study on Trilayer Graphene.” <i>Physical Review B</i>. American Physical Society, 2023. <a href=\"https://doi.org/10.1103/physrevb.108.125411\">https://doi.org/10.1103/physrevb.108.125411</a>."},"issue":"12","arxiv":1,"month":"09","article_number":"125411","department":[{"_id":"MaSe"},{"_id":"ChLa"},{"_id":"MiLe"}]},{"publication_identifier":{"issn":["2542-4653"]},"publication_status":"published","file_date_updated":"2023-09-20T10:46:10Z","has_accepted_license":"1","tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","short":"CC BY (4.0)"},"intvolume":"        15","abstract":[{"lang":"eng","text":"Quantum kinetically constrained models have recently attracted significant attention due to their anomalous dynamics and thermalization. In this work, we introduce a hitherto unexplored family of kinetically constrained models featuring conserved particle number and strong inversion-symmetry breaking due to facilitated hopping. We demonstrate that these models provide a generic example of so-called quantum Hilbert space fragmentation, that is manifested in disconnected sectors in the Hilbert space that are not apparent in the computational basis. Quantum Hilbert space fragmentation leads to an exponential in system size number of eigenstates with exactly zero entanglement entropy across several bipartite cuts. These eigenstates can be probed dynamically using quenches from simple initial product states. In addition, we study the particle spreading under unitary dynamics launched from the domain wall state, and find faster than diffusive dynamics at high particle densities, that crosses over into logarithmically slow relaxation at smaller densities. Using a classically simulable cellular automaton, we reproduce the logarithmic dynamics observed in the quantum case. Our work suggests that particle conserving constrained models with inversion symmetry breaking realize so far unexplored dynamical behavior and invite their further theoretical and experimental studies."}],"volume":15,"article_type":"original","date_created":"2023-09-14T13:08:23Z","author":[{"orcid":"0000-0002-7969-2729","first_name":"Pietro","id":"4115AF5C-F248-11E8-B48F-1D18A9856A87","full_name":"Brighi, Pietro","last_name":"Brighi"},{"id":"F75EE9BE-5C90-11EA-905D-16643DDC885E","full_name":"Ljubotina, Marko","last_name":"Ljubotina","orcid":"0000-0003-0038-7068","first_name":"Marko"},{"last_name":"Serbyn","id":"47809E7E-F248-11E8-B48F-1D18A9856A87","full_name":"Serbyn, Maksym","orcid":"0000-0002-2399-5827","first_name":"Maksym"}],"day":"13","oa_version":"Published Version","title":"Hilbert space fragmentation and slow dynamics in particle-conserving quantum East models","issue":"3","citation":{"mla":"Brighi, Pietro, et al. “Hilbert Space Fragmentation and Slow Dynamics in Particle-Conserving Quantum East Models.” <i>SciPost Physics</i>, vol. 15, no. 3, 093, SciPost Foundation, 2023, doi:<a href=\"https://doi.org/10.21468/scipostphys.15.3.093\">10.21468/scipostphys.15.3.093</a>.","apa":"Brighi, P., Ljubotina, M., &#38; Serbyn, M. (2023). Hilbert space fragmentation and slow dynamics in particle-conserving quantum East models. <i>SciPost Physics</i>. SciPost Foundation. <a href=\"https://doi.org/10.21468/scipostphys.15.3.093\">https://doi.org/10.21468/scipostphys.15.3.093</a>","ista":"Brighi P, Ljubotina M, Serbyn M. 2023. Hilbert space fragmentation and slow dynamics in particle-conserving quantum East models. SciPost Physics. 15(3), 093.","chicago":"Brighi, Pietro, Marko Ljubotina, and Maksym Serbyn. “Hilbert Space Fragmentation and Slow Dynamics in Particle-Conserving Quantum East Models.” <i>SciPost Physics</i>. SciPost Foundation, 2023. <a href=\"https://doi.org/10.21468/scipostphys.15.3.093\">https://doi.org/10.21468/scipostphys.15.3.093</a>.","short":"P. Brighi, M. Ljubotina, M. Serbyn, SciPost Physics 15 (2023).","ieee":"P. Brighi, M. Ljubotina, and M. Serbyn, “Hilbert space fragmentation and slow dynamics in particle-conserving quantum East models,” <i>SciPost Physics</i>, vol. 15, no. 3. SciPost Foundation, 2023.","ama":"Brighi P, Ljubotina M, Serbyn M. Hilbert space fragmentation and slow dynamics in particle-conserving quantum East models. <i>SciPost Physics</i>. 2023;15(3). doi:<a href=\"https://doi.org/10.21468/scipostphys.15.3.093\">10.21468/scipostphys.15.3.093</a>"},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","oa":1,"language":[{"iso":"eng"}],"department":[{"_id":"MaSe"}],"article_number":"093","file":[{"file_id":"14350","date_updated":"2023-09-20T10:46:10Z","creator":"dernst","file_size":4866506,"date_created":"2023-09-20T10:46:10Z","checksum":"4cef6a8021f6b6c47ab2f2f2b1387ac2","relation":"main_file","content_type":"application/pdf","access_level":"open_access","file_name":"2023_SciPostPhysics_Brighi.pdf","success":1}],"arxiv":1,"month":"09","quality_controlled":"1","ddc":["530"],"date_updated":"2023-09-20T10:46:29Z","_id":"14334","type":"journal_article","doi":"10.21468/scipostphys.15.3.093","article_processing_charge":"No","publisher":"SciPost Foundation","ec_funded":1,"acknowledgement":"We would like to thank Raimel A. Medina, Hansveer Singh, and Dmitry Abanin for useful\r\ndiscussions.The authors acknowledge support by the European Research Council\r\n(ERC) under the European Union’s Horizon 2020 research and innovation program (Grant\r\nAgreement No. 850899). We acknowledge support by the Erwin Schrödinger International\r\nInstitute for Mathematics and Physics (ESI).","date_published":"2023-09-13T00:00:00Z","project":[{"_id":"23841C26-32DE-11EA-91FC-C7463DDC885E","call_identifier":"H2020","name":"Non-Ergodic Quantum Matter: Universality, Dynamics and Control","grant_number":"850899"}],"publication":"SciPost Physics","status":"public","keyword":["General Physics and Astronomy"],"year":"2023","external_id":{"arxiv":["2210.15607"]},"related_material":{"record":[{"status":"public","relation":"earlier_version","id":"12750"}]}},{"file_date_updated":"2023-06-13T07:28:36Z","publication_identifier":{"eissn":["2469-9934"],"issn":["2469-9926"]},"publication_status":"published","abstract":[{"lang":"eng","text":"The quantum approximate optimization algorithm (QAOA) is a variational quantum algorithm, where a quantum computer implements a variational ansatz consisting of p layers of alternating unitary operators and a classical computer is used to optimize the variational parameters. For a random initialization, the optimization typically leads to local minima with poor performance, motivating the search for initialization strategies of QAOA variational parameters. Although numerous heuristic initializations exist, an analytical understanding and performance guarantees for large p remain evasive.We introduce a greedy initialization of QAOA which guarantees improving performance with an increasing number of layers. Our main result is an analytic construction of 2p + 1 transition states—saddle points with a unique negative curvature direction—for QAOA with p + 1 layers that use the local minimum of QAOA with p layers. Transition states connect to new local minima, which are guaranteed to lower the energy compared to the minimum found for p layers. We use the GREEDY procedure to navigate the exponentially increasing with p number of local minima resulting from the recursive application of our analytic construction. The performance of the GREEDY procedure matches available initialization strategies while providing a guarantee for the minimal energy to decrease with an increasing number of layers p. "}],"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","short":"CC BY (4.0)"},"intvolume":"       107","has_accepted_license":"1","date_created":"2023-06-07T06:57:32Z","article_type":"original","volume":107,"title":"Recursive greedy initialization of the quantum approximate optimization algorithm with guaranteed improvement","oa_version":"Published Version","scopus_import":"1","day":"02","author":[{"last_name":"Sack","full_name":"Sack, Stefan","id":"dd622248-f6e0-11ea-865d-ce382a1c81a5","orcid":"0000-0001-5400-8508","first_name":"Stefan"},{"orcid":"0000-0002-5383-2869","first_name":"Raimel A","last_name":"Medina Ramos","full_name":"Medina Ramos, Raimel A","id":"CE680B90-D85A-11E9-B684-C920E6697425"},{"full_name":"Kueng, Richard","last_name":"Kueng","first_name":"Richard"},{"full_name":"Serbyn, Maksym","id":"47809E7E-F248-11E8-B48F-1D18A9856A87","last_name":"Serbyn","orcid":"0000-0002-2399-5827","first_name":"Maksym"}],"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","citation":{"apa":"Sack, S., Medina Ramos, R. A., Kueng, R., &#38; Serbyn, M. (2023). Recursive greedy initialization of the quantum approximate optimization algorithm with guaranteed improvement. <i>Physical Review A</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physreva.107.062404\">https://doi.org/10.1103/physreva.107.062404</a>","mla":"Sack, Stefan, et al. “Recursive Greedy Initialization of the Quantum Approximate Optimization Algorithm with Guaranteed Improvement.” <i>Physical Review A</i>, vol. 107, no. 6, 062404, American Physical Society, 2023, doi:<a href=\"https://doi.org/10.1103/physreva.107.062404\">10.1103/physreva.107.062404</a>.","ista":"Sack S, Medina Ramos RA, Kueng R, Serbyn M. 2023. Recursive greedy initialization of the quantum approximate optimization algorithm with guaranteed improvement. Physical Review A. 107(6), 062404.","chicago":"Sack, Stefan, Raimel A Medina Ramos, Richard Kueng, and Maksym Serbyn. “Recursive Greedy Initialization of the Quantum Approximate Optimization Algorithm with Guaranteed Improvement.” <i>Physical Review A</i>. American Physical Society, 2023. <a href=\"https://doi.org/10.1103/physreva.107.062404\">https://doi.org/10.1103/physreva.107.062404</a>.","ieee":"S. Sack, R. A. Medina Ramos, R. Kueng, and M. Serbyn, “Recursive greedy initialization of the quantum approximate optimization algorithm with guaranteed improvement,” <i>Physical Review A</i>, vol. 107, no. 6. American Physical Society, 2023.","short":"S. Sack, R.A. Medina Ramos, R. Kueng, M. Serbyn, Physical Review A 107 (2023).","ama":"Sack S, Medina Ramos RA, Kueng R, Serbyn M. Recursive greedy initialization of the quantum approximate optimization algorithm with guaranteed improvement. <i>Physical Review A</i>. 2023;107(6). doi:<a href=\"https://doi.org/10.1103/physreva.107.062404\">10.1103/physreva.107.062404</a>"},"issue":"6","language":[{"iso":"eng"}],"oa":1,"file":[{"relation":"main_file","checksum":"0d71423888eeccaa60d8f41197f26306","file_name":"2023_PhysRevA_Sack.pdf","success":1,"content_type":"application/pdf","access_level":"open_access","file_id":"13131","file_size":2524611,"date_created":"2023-06-13T07:28:36Z","creator":"dernst","date_updated":"2023-06-13T07:28:36Z"}],"article_number":"062404","department":[{"_id":"MaSe"}],"month":"06","arxiv":1,"quality_controlled":"1","ddc":["530"],"type":"journal_article","_id":"13125","date_updated":"2023-12-13T14:47:25Z","publisher":"American Physical Society","article_processing_charge":"No","doi":"10.1103/physreva.107.062404","acknowledgement":"We thank V. Verteletskyi for a joint collaboration on numerical studies of the QAOA during his internship at ISTA that inspired analytic results on TS reported in this work. We acknowledge A. A. Mele and M. Brooks for discussions and D. Egger, P. Love, and D. Wierichs for valuable feedback on the manuscript. S.H.S., R.A.M., and M.S. acknowledge support by the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (Grant Agreement No. 850899). R.K. is supported by the SFB BeyondC (Grant No. F7107-N38) and the project QuantumReady (FFG 896217). ","date_published":"2023-06-02T00:00:00Z","ec_funded":1,"publication":"Physical Review A","status":"public","project":[{"call_identifier":"H2020","grant_number":"850899","name":"Non-Ergodic Quantum Matter: Universality, Dynamics and Control","_id":"23841C26-32DE-11EA-91FC-C7463DDC885E"}],"related_material":{"record":[{"relation":"dissertation_contains","status":"public","id":"14622"}]},"external_id":{"isi":["001016927100012"],"arxiv":["2209.01159"]},"year":"2023","isi":1},{"oa":1,"language":[{"iso":"eng"}],"citation":{"ama":"Brighi P, Ljubotina M, Abanin DA, Serbyn M. Many-body localization proximity effect in a two-species bosonic Hubbard model. <i>Physical Review B</i>. 2023;108(5). doi:<a href=\"https://doi.org/10.1103/physrevb.108.054201\">10.1103/physrevb.108.054201</a>","short":"P. Brighi, M. Ljubotina, D.A. Abanin, M. Serbyn, Physical Review B 108 (2023).","ieee":"P. Brighi, M. Ljubotina, D. A. Abanin, and M. Serbyn, “Many-body localization proximity effect in a two-species bosonic Hubbard model,” <i>Physical Review B</i>, vol. 108, no. 5. American Physical Society, 2023.","ista":"Brighi P, Ljubotina M, Abanin DA, Serbyn M. 2023. Many-body localization proximity effect in a two-species bosonic Hubbard model. Physical Review B. 108(5), 054201.","chicago":"Brighi, Pietro, Marko Ljubotina, Dmitry A. Abanin, and Maksym Serbyn. “Many-Body Localization Proximity Effect in a Two-Species Bosonic Hubbard Model.” <i>Physical Review B</i>. American Physical Society, 2023. <a href=\"https://doi.org/10.1103/physrevb.108.054201\">https://doi.org/10.1103/physrevb.108.054201</a>.","mla":"Brighi, Pietro, et al. “Many-Body Localization Proximity Effect in a Two-Species Bosonic Hubbard Model.” <i>Physical Review B</i>, vol. 108, no. 5, 054201, American Physical Society, 2023, doi:<a href=\"https://doi.org/10.1103/physrevb.108.054201\">10.1103/physrevb.108.054201</a>.","apa":"Brighi, P., Ljubotina, M., Abanin, D. A., &#38; Serbyn, M. (2023). Many-body localization proximity effect in a two-species bosonic Hubbard model. <i>Physical Review B</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physrevb.108.054201\">https://doi.org/10.1103/physrevb.108.054201</a>"},"issue":"5","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","month":"08","arxiv":1,"department":[{"_id":"MaSe"}],"file":[{"file_size":3051398,"date_created":"2023-08-07T09:48:08Z","creator":"dernst","date_updated":"2023-08-07T09:48:08Z","file_id":"13981","success":1,"file_name":"2023_PhysRevB_Brighi.pdf","access_level":"open_access","content_type":"application/pdf","relation":"main_file","checksum":"f763000339b5fd543c14377109920690"}],"article_number":"054201","has_accepted_license":"1","tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","short":"CC BY (4.0)"},"abstract":[{"text":"The many-body localization (MBL) proximity effect is an intriguing phenomenon where a thermal bath localizes due to the interaction with a disordered system. The interplay of thermal and nonergodic behavior in these systems gives rise to a rich phase diagram, whose exploration is an active field of research. In this paper, we study a bosonic Hubbard model featuring two particle species representing the bath and the disordered system. Using state-of-the-art numerical techniques, we investigate the dynamics of the model in different regimes, based on which we obtain a tentative phase diagram as a function of coupling strength and bath size. When the bath is composed of a single particle, we observe clear signatures of a transition from an MBL proximity effect to a delocalized phase. Increasing the bath size, however, its thermalizing effect becomes stronger and eventually the whole system delocalizes in the range of moderate interaction strengths studied. In this regime, we characterize particle transport, revealing diffusive behavior of the originally localized bosons.","lang":"eng"}],"intvolume":"       108","file_date_updated":"2023-08-07T09:48:08Z","publication_identifier":{"issn":["2469-9950"],"eissn":["2469-9969"]},"publication_status":"published","day":"01","scopus_import":"1","author":[{"full_name":"Brighi, Pietro","id":"4115AF5C-F248-11E8-B48F-1D18A9856A87","last_name":"Brighi","first_name":"Pietro","orcid":"0000-0002-7969-2729"},{"first_name":"Marko","last_name":"Ljubotina","id":"F75EE9BE-5C90-11EA-905D-16643DDC885E","full_name":"Ljubotina, Marko"},{"last_name":"Abanin","full_name":"Abanin, Dmitry A.","first_name":"Dmitry A."},{"full_name":"Serbyn, Maksym","id":"47809E7E-F248-11E8-B48F-1D18A9856A87","last_name":"Serbyn","orcid":"0000-0002-2399-5827","first_name":"Maksym"}],"title":"Many-body localization proximity effect in a two-species bosonic Hubbard model","oa_version":"Published Version","volume":108,"date_created":"2023-08-05T18:25:22Z","article_type":"original","publication":"Physical Review B","status":"public","project":[{"name":"Non-Ergodic Quantum Matter: Universality, Dynamics and Control","grant_number":"850899","call_identifier":"H2020","_id":"23841C26-32DE-11EA-91FC-C7463DDC885E"}],"ec_funded":1,"acknowledgement":"We thank A. A. Michailidis and A. Mirlin for insightful discussions. P.B., M.L., and M.S. acknowledge support by the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (Grant Agreement No. 850899). D.A. was\r\nsupported by the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (Grant Agreement No. 864597) and by the Swiss National Science Foundation. P.B., M.L., and M.S. acknowledge PRACE for awarding us access to Joliot-Curie at GENCI@CEA, France, where the TEBD simulations were performed. The TEBD simulations were performed using the ITensor library [60].","date_published":"2023-08-01T00:00:00Z","year":"2023","external_id":{"arxiv":["2303.16876"]},"ddc":["530"],"quality_controlled":"1","article_processing_charge":"Yes (in subscription journal)","doi":"10.1103/physrevb.108.054201","publisher":"American Physical Society","_id":"13963","date_updated":"2023-08-07T09:51:39Z","type":"journal_article"},{"publisher":"American Physical Society","doi":"10.1103/PhysRevB.107.104502","article_processing_charge":"No","type":"journal_article","date_updated":"2023-08-01T13:59:29Z","_id":"12790","quality_controlled":"1","main_file_link":[{"url":"https://doi.org/10.48550/arXiv.2211.02492","open_access":"1"}],"external_id":{"isi":["000945526400003"],"arxiv":["2211.02492"]},"related_material":{"link":[{"url":"https://ista.ac.at/en/news/reaching-superconductivity-layer-by-layer/","description":"News on the ISTA website","relation":"press_release"}]},"isi":1,"year":"2023","status":"public","publication":"Physical Review B","acknowledgement":"E.B. and T.H. were supported by the European Research Council (ERC) under grant HQMAT (Grant Agreement No. 817799), by the Israel-USA Binational Science Foundation (BSF), and by a Research grant from Irving and Cherna Moskowitz.","date_published":"2023-03-01T00:00:00Z","title":"Multilayer graphenes as a platform for interaction-driven physics and topological superconductivity","oa_version":"Preprint","author":[{"full_name":"Ghazaryan, Areg","id":"4AF46FD6-F248-11E8-B48F-1D18A9856A87","last_name":"Ghazaryan","orcid":"0000-0001-9666-3543","first_name":"Areg"},{"last_name":"Holder","full_name":"Holder, Tobias","first_name":"Tobias"},{"first_name":"Erez","full_name":"Berg, Erez","last_name":"Berg"},{"first_name":"Maksym","orcid":"0000-0002-2399-5827","last_name":"Serbyn","full_name":"Serbyn, Maksym","id":"47809E7E-F248-11E8-B48F-1D18A9856A87"}],"day":"01","scopus_import":"1","article_type":"original","date_created":"2023-04-02T22:01:10Z","volume":107,"intvolume":"       107","abstract":[{"lang":"eng","text":"Motivated by the recent discoveries of superconductivity in bilayer and trilayer graphene, we theoretically investigate superconductivity and other interaction-driven phases in multilayer graphene stacks. To this end, we study the density of states of multilayer graphene with up to four layers at the single-particle band structure level in the presence of a transverse electric field. Among the considered structures, tetralayer graphene with rhombohedral (ABCA) stacking reaches the highest density of states. We study the phases that can arise in ABCA graphene by tuning the carrier density and transverse electric field. For a broad region of the tuning parameters, the presence of strong Coulomb repulsion leads to a spontaneous spin and valley symmetry breaking via Stoner transitions. Using a model that incorporates the spontaneous spin and valley polarization, we explore the Kohn-Luttinger mechanism for superconductivity driven by repulsive Coulomb interactions. We find that the strongest superconducting instability is in the p-wave channel, and occurs in proximity to the onset of Stoner transitions. Interestingly, we find a range of densities and transverse electric fields where superconductivity develops out of a strongly corrugated, singly connected Fermi surface in each valley, leading to a topologically nontrivial chiral p+ip superconducting state with an even number of copropagating chiral Majorana edge modes. Our work establishes ABCA-stacked tetralayer graphene as a promising platform for observing strongly correlated physics and topological superconductivity."}],"publication_status":"published","publication_identifier":{"eissn":["2469-9969"],"issn":["2469-9950"]},"arxiv":1,"month":"03","article_number":"104502","department":[{"_id":"MaSe"},{"_id":"MiLe"}],"language":[{"iso":"eng"}],"oa":1,"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","issue":"10","citation":{"ama":"Ghazaryan A, Holder T, Berg E, Serbyn M. Multilayer graphenes as a platform for interaction-driven physics and topological superconductivity. <i>Physical Review B</i>. 2023;107(10). doi:<a href=\"https://doi.org/10.1103/PhysRevB.107.104502\">10.1103/PhysRevB.107.104502</a>","short":"A. Ghazaryan, T. Holder, E. Berg, M. Serbyn, Physical Review B 107 (2023).","ieee":"A. Ghazaryan, T. Holder, E. Berg, and M. Serbyn, “Multilayer graphenes as a platform for interaction-driven physics and topological superconductivity,” <i>Physical Review B</i>, vol. 107, no. 10. American Physical Society, 2023.","ista":"Ghazaryan A, Holder T, Berg E, Serbyn M. 2023. Multilayer graphenes as a platform for interaction-driven physics and topological superconductivity. Physical Review B. 107(10), 104502.","chicago":"Ghazaryan, Areg, Tobias Holder, Erez Berg, and Maksym Serbyn. “Multilayer Graphenes as a Platform for Interaction-Driven Physics and Topological Superconductivity.” <i>Physical Review B</i>. American Physical Society, 2023. <a href=\"https://doi.org/10.1103/PhysRevB.107.104502\">https://doi.org/10.1103/PhysRevB.107.104502</a>.","mla":"Ghazaryan, Areg, et al. “Multilayer Graphenes as a Platform for Interaction-Driven Physics and Topological Superconductivity.” <i>Physical Review B</i>, vol. 107, no. 10, 104502, American Physical Society, 2023, doi:<a href=\"https://doi.org/10.1103/PhysRevB.107.104502\">10.1103/PhysRevB.107.104502</a>.","apa":"Ghazaryan, A., Holder, T., Berg, E., &#38; Serbyn, M. (2023). Multilayer graphenes as a platform for interaction-driven physics and topological superconductivity. <i>Physical Review B</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevB.107.104502\">https://doi.org/10.1103/PhysRevB.107.104502</a>"}},{"ec_funded":1,"acknowledgement":"We would like to thank Alexios Michailidis, Sarang Gopalakrishnan, and Achilleas Lazarides for useful comments. M. L. and M. S. acknowledge support by the European Research Council under the European Union’s Horizon 2020 research and innovation program (Grant\r\nAgreement No. 850899). J.-Y. D. and Z. P. acknowledge support by EPSRC Grant No. EP/R513258/1 and the Leverhulme Trust Research Leadership Grant No. RL2019-015. Statement of compliance with EPSRC policy framework on research data: This publication is theoretical work that does not require supporting research data. M. S., M. L., and Z. P. acknowledge support by the Erwin Schrödinger International Institute for Mathematics and\r\nPhysics. M. L. and M. S. acknowledge PRACE for awarding us access to Joliot-Curie at GENCI@CEA, France, where the TEBD simulations were performed. The TEBD\r\nsimulations were performed using the ITENSOR library [54].","date_published":"2023-03-07T00:00:00Z","project":[{"_id":"23841C26-32DE-11EA-91FC-C7463DDC885E","call_identifier":"H2020","name":"Non-Ergodic Quantum Matter: Universality, Dynamics and Control","grant_number":"850899"}],"status":"public","publication":"Physical Review X","isi":1,"year":"2023","external_id":{"isi":["000957625700001"]},"quality_controlled":"1","ddc":["530"],"date_updated":"2023-08-01T14:11:28Z","_id":"12839","type":"journal_article","doi":"10.1103/PhysRevX.13.011033","article_processing_charge":"No","publisher":"American Physical Society","issue":"1","citation":{"ama":"Ljubotina M, Desaules JY, Serbyn M, Papić Z. Superdiffusive energy transport in kinetically constrained models. <i>Physical Review X</i>. 2023;13(1). doi:<a href=\"https://doi.org/10.1103/PhysRevX.13.011033\">10.1103/PhysRevX.13.011033</a>","short":"M. Ljubotina, J.Y. Desaules, M. Serbyn, Z. Papić, Physical Review X 13 (2023).","ieee":"M. Ljubotina, J. Y. Desaules, M. Serbyn, and Z. Papić, “Superdiffusive energy transport in kinetically constrained models,” <i>Physical Review X</i>, vol. 13, no. 1. American Physical Society, 2023.","ista":"Ljubotina M, Desaules JY, Serbyn M, Papić Z. 2023. Superdiffusive energy transport in kinetically constrained models. Physical Review X. 13(1), 011033.","chicago":"Ljubotina, Marko, Jean Yves Desaules, Maksym Serbyn, and Zlatko Papić. “Superdiffusive Energy Transport in Kinetically Constrained Models.” <i>Physical Review X</i>. American Physical Society, 2023. <a href=\"https://doi.org/10.1103/PhysRevX.13.011033\">https://doi.org/10.1103/PhysRevX.13.011033</a>.","mla":"Ljubotina, Marko, et al. “Superdiffusive Energy Transport in Kinetically Constrained Models.” <i>Physical Review X</i>, vol. 13, no. 1, 011033, American Physical Society, 2023, doi:<a href=\"https://doi.org/10.1103/PhysRevX.13.011033\">10.1103/PhysRevX.13.011033</a>.","apa":"Ljubotina, M., Desaules, J. Y., Serbyn, M., &#38; Papić, Z. (2023). Superdiffusive energy transport in kinetically constrained models. <i>Physical Review X</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevX.13.011033\">https://doi.org/10.1103/PhysRevX.13.011033</a>"},"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","oa":1,"language":[{"iso":"eng"}],"department":[{"_id":"MaSe"}],"article_number":"011033","file":[{"relation":"main_file","checksum":"ee060cea609af79bba7af74b1ce28078","success":1,"file_name":"2023_PhysReviewX_Ljubotina.pdf","access_level":"open_access","content_type":"application/pdf","file_id":"12845","date_created":"2023-04-17T08:36:53Z","file_size":1958523,"creator":"dernst","date_updated":"2023-04-17T08:36:53Z"}],"month":"03","publication_identifier":{"eissn":["2160-3308"]},"publication_status":"published","file_date_updated":"2023-04-17T08:36:53Z","has_accepted_license":"1","abstract":[{"text":"Universal nonequilibrium properties of isolated quantum systems are typically probed by studying transport of conserved quantities, such as charge or spin, while transport of energy has received considerably less attention. Here, we study infinite-temperature energy transport in the kinetically constrained PXP model describing Rydberg atom quantum simulators. Our state-of-the-art numerical simulations, including exact diagonalization and time-evolving block decimation methods, reveal the existence of two distinct transport regimes. At moderate times, the energy-energy correlation function displays periodic oscillations due to families of eigenstates forming different su(2) representations hidden within the spectrum. These families of eigenstates generalize the quantum many-body scarred states found in previous works and leave an imprint on the infinite-temperature energy transport. At later times, we observe a long-lived superdiffusive transport regime that we attribute to the proximity of a nearby integrable point. While generic strong deformations of the PXP model indeed restore diffusive transport, adding a strong chemical potential intriguingly gives rise to a well-converged superdiffusive exponent z≈3/2. Our results suggest constrained models to be potential hosts of novel transport regimes and call for developing an analytic understanding of their energy transport.","lang":"eng"}],"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","short":"CC BY (4.0)"},"intvolume":"        13","volume":13,"article_type":"original","date_created":"2023-04-16T22:01:09Z","author":[{"first_name":"Marko","last_name":"Ljubotina","id":"F75EE9BE-5C90-11EA-905D-16643DDC885E","full_name":"Ljubotina, Marko"},{"full_name":"Desaules, Jean Yves","last_name":"Desaules","first_name":"Jean Yves"},{"orcid":"0000-0002-2399-5827","first_name":"Maksym","full_name":"Serbyn, Maksym","id":"47809E7E-F248-11E8-B48F-1D18A9856A87","last_name":"Serbyn"},{"first_name":"Zlatko","last_name":"Papić","full_name":"Papić, Zlatko"}],"scopus_import":"1","day":"07","title":"Superdiffusive energy transport in kinetically constrained models","oa_version":"Published Version"},{"oa_version":"Preprint","title":"Detecting induced p±ip pairing at the Al-InAs interface with a quantum microwave circuit","scopus_import":"1","day":"11","author":[{"full_name":"Phan, Duc T","id":"29C8C0B4-F248-11E8-B48F-1D18A9856A87","last_name":"Phan","first_name":"Duc T"},{"first_name":"Jorden L","orcid":"0000-0002-0672-9295","last_name":"Senior","id":"5479D234-2D30-11EA-89CC-40953DDC885E","full_name":"Senior, Jorden L"},{"orcid":"0000-0001-9666-3543","first_name":"Areg","id":"4AF46FD6-F248-11E8-B48F-1D18A9856A87","full_name":"Ghazaryan, Areg","last_name":"Ghazaryan"},{"first_name":"M.","last_name":"Hatefipour","full_name":"Hatefipour, M."},{"full_name":"Strickland, W. M.","last_name":"Strickland","first_name":"W. M."},{"last_name":"Shabani","full_name":"Shabani, J.","first_name":"J."},{"first_name":"Maksym","orcid":"0000-0002-2399-5827","id":"47809E7E-F248-11E8-B48F-1D18A9856A87","full_name":"Serbyn, Maksym","last_name":"Serbyn"},{"full_name":"Higginbotham, Andrew P","id":"4AD6785A-F248-11E8-B48F-1D18A9856A87","last_name":"Higginbotham","first_name":"Andrew P","orcid":"0000-0003-2607-2363"}],"date_created":"2022-03-17T11:37:47Z","article_type":"original","volume":128,"acknowledged_ssus":[{"_id":"M-Shop"},{"_id":"NanoFab"}],"intvolume":"       128","abstract":[{"lang":"eng","text":"Superconductor-semiconductor hybrid devices are at the heart of several proposed approaches to quantum information processing, but their basic properties remain to be understood. We embed a twodimensional Al-InAs hybrid system in a resonant microwave circuit, probing the breakdown of superconductivity due to an applied magnetic field. We find a fingerprint from the two-component nature of the hybrid system, and quantitatively compare with a theory that includes the contribution of intraband p±ip pairing in the InAs, as well as the emergence of Bogoliubov-Fermi surfaces due to magnetic field. Separately resolving the Al and InAs contributions allows us to determine the carrier density and mobility in the InAs."}],"publication_status":"published","publication_identifier":{"issn":["0031-9007"],"eissn":["1079-7114"]},"arxiv":1,"month":"03","article_number":"107701","department":[{"_id":"MaSe"},{"_id":"AnHi"}],"language":[{"iso":"eng"}],"oa":1,"user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","citation":{"short":"D.T. Phan, J.L. Senior, A. Ghazaryan, M. Hatefipour, W.M. Strickland, J. Shabani, M. Serbyn, A.P. Higginbotham, Physical Review Letters 128 (2022).","ieee":"D. T. Phan <i>et al.</i>, “Detecting induced p±ip pairing at the Al-InAs interface with a quantum microwave circuit,” <i>Physical Review Letters</i>, vol. 128, no. 10. American Physical Society, 2022.","ama":"Phan DT, Senior JL, Ghazaryan A, et al. Detecting induced p±ip pairing at the Al-InAs interface with a quantum microwave circuit. <i>Physical Review Letters</i>. 2022;128(10). doi:<a href=\"https://doi.org/10.1103/physrevlett.128.107701\">10.1103/physrevlett.128.107701</a>","mla":"Phan, Duc T., et al. “Detecting Induced P±ip Pairing at the Al-InAs Interface with a Quantum Microwave Circuit.” <i>Physical Review Letters</i>, vol. 128, no. 10, 107701, American Physical Society, 2022, doi:<a href=\"https://doi.org/10.1103/physrevlett.128.107701\">10.1103/physrevlett.128.107701</a>.","apa":"Phan, D. T., Senior, J. L., Ghazaryan, A., Hatefipour, M., Strickland, W. M., Shabani, J., … Higginbotham, A. P. (2022). Detecting induced p±ip pairing at the Al-InAs interface with a quantum microwave circuit. <i>Physical Review Letters</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physrevlett.128.107701\">https://doi.org/10.1103/physrevlett.128.107701</a>","chicago":"Phan, Duc T, Jorden L Senior, Areg Ghazaryan, M. Hatefipour, W. M. Strickland, J. Shabani, Maksym Serbyn, and Andrew P Higginbotham. “Detecting Induced P±ip Pairing at the Al-InAs Interface with a Quantum Microwave Circuit.” <i>Physical Review Letters</i>. American Physical Society, 2022. <a href=\"https://doi.org/10.1103/physrevlett.128.107701\">https://doi.org/10.1103/physrevlett.128.107701</a>.","ista":"Phan DT, Senior JL, Ghazaryan A, Hatefipour M, Strickland WM, Shabani J, Serbyn M, Higginbotham AP. 2022. Detecting induced p±ip pairing at the Al-InAs interface with a quantum microwave circuit. Physical Review Letters. 128(10), 107701."},"issue":"10","publisher":"American Physical Society","article_processing_charge":"No","doi":"10.1103/physrevlett.128.107701","type":"journal_article","_id":"10851","date_updated":"2023-11-30T10:56:03Z","quality_controlled":"1","main_file_link":[{"open_access":"1","url":"https://doi.org/10.48550/arXiv.2107.03695"}],"related_material":{"record":[{"id":"10029","relation":"earlier_version","status":"public"},{"status":"public","relation":"dissertation_contains","id":"14547"}],"link":[{"description":"News on ISTA Website","url":"https://ista.ac.at/en/news/characterizing-super-semi-sandwiches-for-quantum-computing/","relation":"press_release"}]},"external_id":{"isi":["000771391100002"],"arxiv":["2107.03695"],"pmid":[" 35333085"]},"year":"2022","isi":1,"keyword":["General Physics and Astronomy"],"status":"public","publication":"Physical Review Letters","project":[{"call_identifier":"H2020","grant_number":"754411","name":"ISTplus - Postdoctoral Fellowships","_id":"260C2330-B435-11E9-9278-68D0E5697425"}],"date_published":"2022-03-11T00:00:00Z","acknowledgement":"M. S. acknowledges useful discussions with A. Levchenko and P. A. Lee, and E. Berg. This research was supported by the Scientific Service Units of IST Austria through resources provided by the MIBA Machine Shop and the nanofabrication facility. J. S. and A. G. acknowledge funding from the European Union’s Horizon 2020 research and innovation program under the Marie Skłodowska-Curie Grant Agreement No. 754411.W. M. Hatefipour, W. M. Strickland and J. Shabani acknowledge funding from Office of Naval Research Award No. N00014-21-1-2450.","ec_funded":1,"pmid":1},{"main_file_link":[{"url":"https://doi.org/10.48550/arXiv.2101.08277","open_access":"1"}],"quality_controlled":"1","doi":"10.1103/PhysRevB.105.L121407","article_processing_charge":"No","publisher":"American Physical Society","date_updated":"2023-08-03T06:09:56Z","_id":"10863","type":"journal_article","status":"public","publication":"Physical Review B","date_published":"2022-03-17T00:00:00Z","acknowledgement":"We are grateful to Takahiro Morimoto and Zhanybek Alpichshev for fruitful discussions. MD was supported by Austrian Agency for International Cooperation in Education and Research (OeAD-GmbH) and by the John Seo Fellowship at MIT. HI was supported by JSPS KAKENHI Grant Numbers JP19K14649 and JP18H03676, and by UTokyo Global Activity Support Program for\r\nYoung Researchers.","isi":1,"year":"2022","external_id":{"arxiv":["2101.08277"],"isi":["000800752500001"]},"intvolume":"       105","abstract":[{"text":"Nonlinear optical responses are commonly used as a probe for studying the electronic properties of materials. For topological materials, studies thus far focused on photogalvanic electric currents, which are forbidden in centrosymmetric materials because they require broken inversion symmetry. In this Letter, we propose a class of symmetry-allowed responses for inversion-symmetric topological insulators with two doubly degenerate bands. We consider a specific example of such a response, the orbital current, and show that the sign of the response reflects the Z2 topological index, i.e., the orbital current changes sign at the transition between trivial and topological insulator phases. This is illustrated in two models of topological insulators: the Bernevig-Hughes-Zhang model and the 1T′ phase of transition metal dichalcogenides.","lang":"eng"}],"publication_identifier":{"issn":["2469-9969"]},"publication_status":"published","author":[{"first_name":"Margarita","full_name":"Davydova, Margarita","last_name":"Davydova"},{"last_name":"Serbyn","id":"47809E7E-F248-11E8-B48F-1D18A9856A87","full_name":"Serbyn, Maksym","first_name":"Maksym","orcid":"0000-0002-2399-5827"},{"first_name":"Hiroaki","full_name":"Ishizuka, Hiroaki","last_name":"Ishizuka"}],"scopus_import":"1","day":"17","title":"Symmetry-allowed nonlinear orbital response across the topological phase transition in centrosymmetric materials","oa_version":"Preprint","volume":105,"article_type":"letter_note","date_created":"2022-03-18T10:20:46Z","oa":1,"language":[{"iso":"eng"}],"citation":{"chicago":"Davydova, Margarita, Maksym Serbyn, and Hiroaki Ishizuka. “Symmetry-Allowed Nonlinear Orbital Response across the Topological Phase Transition in Centrosymmetric Materials.” <i>Physical Review B</i>. American Physical Society, 2022. <a href=\"https://doi.org/10.1103/PhysRevB.105.L121407\">https://doi.org/10.1103/PhysRevB.105.L121407</a>.","ista":"Davydova M, Serbyn M, Ishizuka H. 2022. Symmetry-allowed nonlinear orbital response across the topological phase transition in centrosymmetric materials. Physical Review B. 105, L121407.","apa":"Davydova, M., Serbyn, M., &#38; Ishizuka, H. (2022). Symmetry-allowed nonlinear orbital response across the topological phase transition in centrosymmetric materials. <i>Physical Review B</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevB.105.L121407\">https://doi.org/10.1103/PhysRevB.105.L121407</a>","mla":"Davydova, Margarita, et al. “Symmetry-Allowed Nonlinear Orbital Response across the Topological Phase Transition in Centrosymmetric Materials.” <i>Physical Review B</i>, vol. 105, L121407, American Physical Society, 2022, doi:<a href=\"https://doi.org/10.1103/PhysRevB.105.L121407\">10.1103/PhysRevB.105.L121407</a>.","ama":"Davydova M, Serbyn M, Ishizuka H. Symmetry-allowed nonlinear orbital response across the topological phase transition in centrosymmetric materials. <i>Physical Review B</i>. 2022;105. doi:<a href=\"https://doi.org/10.1103/PhysRevB.105.L121407\">10.1103/PhysRevB.105.L121407</a>","ieee":"M. Davydova, M. Serbyn, and H. Ishizuka, “Symmetry-allowed nonlinear orbital response across the topological phase transition in centrosymmetric materials,” <i>Physical Review B</i>, vol. 105. American Physical Society, 2022.","short":"M. Davydova, M. Serbyn, H. Ishizuka, Physical Review B 105 (2022)."},"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","month":"03","arxiv":1,"department":[{"_id":"MaSe"}],"article_number":"L121407"},{"doi":"10.1103/PhysRevB.105.165149","article_processing_charge":"No","publisher":"American Physical Society","date_updated":"2023-08-03T06:33:33Z","_id":"11337","type":"journal_article","main_file_link":[{"open_access":"1","url":" https://doi.org/10.48550/arXiv.2112.11273"}],"quality_controlled":"1","isi":1,"year":"2022","external_id":{"arxiv":["2112.11273"],"isi":["000806812400004"]},"project":[{"_id":"23841C26-32DE-11EA-91FC-C7463DDC885E","grant_number":"850899","name":"Non-Ergodic Quantum Matter: Universality, Dynamics and Control","call_identifier":"H2020"},{"call_identifier":"H2020","name":"ISTplus - Postdoctoral Fellowships","grant_number":"754411","_id":"260C2330-B435-11E9-9278-68D0E5697425"}],"status":"public","publication":"Physical Review B","ec_funded":1,"date_published":"2022-04-15T00:00:00Z","acknowledgement":"We acknowledge support by the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (Grant Agreement No. 850899).\r\nS.D.N. also acknowledges funding from the Institute of Science and Technology (IST) Austria, and from the European Union’s Horizon 2020 Research and Innovation Programme under the Marie Skłodowska-Curie Grant Agreement No. 754411.","author":[{"full_name":"De Nicola, Stefano","id":"42832B76-F248-11E8-B48F-1D18A9856A87","last_name":"De Nicola","orcid":"0000-0002-4842-6671","first_name":"Stefano"},{"first_name":"Alexios","full_name":"Michailidis, Alexios","id":"36EBAD38-F248-11E8-B48F-1D18A9856A87","last_name":"Michailidis"},{"full_name":"Serbyn, Maksym","id":"47809E7E-F248-11E8-B48F-1D18A9856A87","last_name":"Serbyn","orcid":"0000-0002-2399-5827","first_name":"Maksym"}],"day":"15","oa_version":"Preprint","title":"Entanglement and precession in two-dimensional dynamical quantum phase transitions","volume":105,"article_type":"original","date_created":"2022-04-28T08:06:10Z","abstract":[{"text":"Nonanalytic points in the return probability of a quantum state as a function of time, known as dynamical quantum phase transitions (DQPTs), have received great attention in recent years, but the understanding of their mechanism is still incomplete. In our recent work [Phys. Rev. Lett. 126, 040602 (2021)], we demonstrated that one-dimensional DQPTs can be produced by two distinct mechanisms, namely semiclassical precession and entanglement generation, leading to the definition of precession (pDQPTs) and entanglement (eDQPTs) dynamical quantum phase transitions. In this manuscript, we extend and investigate the notion of p- and eDQPTs in two-dimensional systems by considering semi-infinite ladders of varying width. For square lattices, we find that pDQPTs and eDQPTs persist and are characterized by similar phenomenology as in 1D: pDQPTs are associated with a magnetization sign change and a wide entanglement gap, while eDQPTs correspond to suppressed local observables and avoided crossings in the entanglement spectrum. However, DQPTs show higher sensitivity to the ladder width and other details, challenging the extrapolation to the thermodynamic limit especially for eDQPTs. Moving to honeycomb lattices, we also demonstrate that lattices with an odd number of nearest neighbors give rise to phenomenologies beyond the one-dimensional classification.","lang":"eng"}],"intvolume":"       105","publication_status":"published","publication_identifier":{"issn":["2469-9950"],"eisbn":["2469-9969"]},"month":"04","arxiv":1,"department":[{"_id":"MaSe"}],"article_number":"165149","oa":1,"language":[{"iso":"eng"}],"citation":{"ama":"De Nicola S, Michailidis A, Serbyn M. Entanglement and precession in two-dimensional dynamical quantum phase transitions. <i>Physical Review B</i>. 2022;105. doi:<a href=\"https://doi.org/10.1103/PhysRevB.105.165149\">10.1103/PhysRevB.105.165149</a>","ieee":"S. De Nicola, A. Michailidis, and M. Serbyn, “Entanglement and precession in two-dimensional dynamical quantum phase transitions,” <i>Physical Review B</i>, vol. 105. American Physical Society, 2022.","short":"S. De Nicola, A. Michailidis, M. Serbyn, Physical Review B 105 (2022).","chicago":"De Nicola, Stefano, Alexios Michailidis, and Maksym Serbyn. “Entanglement and Precession in Two-Dimensional Dynamical Quantum Phase Transitions.” <i>Physical Review B</i>. American Physical Society, 2022. <a href=\"https://doi.org/10.1103/PhysRevB.105.165149\">https://doi.org/10.1103/PhysRevB.105.165149</a>.","ista":"De Nicola S, Michailidis A, Serbyn M. 2022. Entanglement and precession in two-dimensional dynamical quantum phase transitions. Physical Review B. 105, 165149.","apa":"De Nicola, S., Michailidis, A., &#38; Serbyn, M. (2022). Entanglement and precession in two-dimensional dynamical quantum phase transitions. <i>Physical Review B</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevB.105.165149\">https://doi.org/10.1103/PhysRevB.105.165149</a>","mla":"De Nicola, Stefano, et al. “Entanglement and Precession in Two-Dimensional Dynamical Quantum Phase Transitions.” <i>Physical Review B</i>, vol. 105, 165149, American Physical Society, 2022, doi:<a href=\"https://doi.org/10.1103/PhysRevB.105.165149\">10.1103/PhysRevB.105.165149</a>."},"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8"},{"month":"04","arxiv":1,"department":[{"_id":"MaSe"}],"oa":1,"language":[{"iso":"eng"}],"citation":{"mla":"Winterer, Felix, et al. “Spontaneous Gully-Polarized Quantum Hall States in ABA Trilayer Graphene.” <i>Nano Letters</i>, vol. 22, no. 8, American Chemical Society, 2022, pp. 3317–22, doi:<a href=\"https://doi.org/10.1021/acs.nanolett.2c00435\">10.1021/acs.nanolett.2c00435</a>.","apa":"Winterer, F., Seiler, A. M., Ghazaryan, A., Geisenhof, F. R., Watanabe, K., Taniguchi, T., … Weitz, R. T. (2022). Spontaneous gully-polarized quantum hall states in ABA trilayer graphene. <i>Nano Letters</i>. American Chemical Society. <a href=\"https://doi.org/10.1021/acs.nanolett.2c00435\">https://doi.org/10.1021/acs.nanolett.2c00435</a>","chicago":"Winterer, Felix, Anna M. Seiler, Areg Ghazaryan, Fabian R. Geisenhof, Kenji Watanabe, Takashi Taniguchi, Maksym Serbyn, and R. Thomas Weitz. “Spontaneous Gully-Polarized Quantum Hall States in ABA Trilayer Graphene.” <i>Nano Letters</i>. American Chemical Society, 2022. <a href=\"https://doi.org/10.1021/acs.nanolett.2c00435\">https://doi.org/10.1021/acs.nanolett.2c00435</a>.","ista":"Winterer F, Seiler AM, Ghazaryan A, Geisenhof FR, Watanabe K, Taniguchi T, Serbyn M, Weitz RT. 2022. Spontaneous gully-polarized quantum hall states in ABA trilayer graphene. Nano Letters. 22(8), 3317–3322.","short":"F. Winterer, A.M. Seiler, A. Ghazaryan, F.R. Geisenhof, K. Watanabe, T. Taniguchi, M. Serbyn, R.T. Weitz, Nano Letters 22 (2022) 3317–3322.","ieee":"F. Winterer <i>et al.</i>, “Spontaneous gully-polarized quantum hall states in ABA trilayer graphene,” <i>Nano Letters</i>, vol. 22, no. 8. American Chemical Society, pp. 3317–3322, 2022.","ama":"Winterer F, Seiler AM, Ghazaryan A, et al. Spontaneous gully-polarized quantum hall states in ABA trilayer graphene. <i>Nano Letters</i>. 2022;22(8):3317-3322. doi:<a href=\"https://doi.org/10.1021/acs.nanolett.2c00435\">10.1021/acs.nanolett.2c00435</a>"},"issue":"8","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","scopus_import":"1","day":"27","author":[{"full_name":"Winterer, Felix","last_name":"Winterer","first_name":"Felix"},{"first_name":"Anna M.","last_name":"Seiler","full_name":"Seiler, Anna M."},{"orcid":"0000-0001-9666-3543","first_name":"Areg","full_name":"Ghazaryan, Areg","id":"4AF46FD6-F248-11E8-B48F-1D18A9856A87","last_name":"Ghazaryan"},{"first_name":"Fabian R.","full_name":"Geisenhof, Fabian R.","last_name":"Geisenhof"},{"first_name":"Kenji","last_name":"Watanabe","full_name":"Watanabe, Kenji"},{"full_name":"Taniguchi, Takashi","last_name":"Taniguchi","first_name":"Takashi"},{"orcid":"0000-0002-2399-5827","first_name":"Maksym","id":"47809E7E-F248-11E8-B48F-1D18A9856A87","full_name":"Serbyn, Maksym","last_name":"Serbyn"},{"first_name":"R. Thomas","last_name":"Weitz","full_name":"Weitz, R. Thomas"}],"title":"Spontaneous gully-polarized quantum hall states in ABA trilayer graphene","oa_version":"Preprint","volume":22,"date_created":"2022-05-15T22:01:41Z","article_type":"original","intvolume":"        22","abstract":[{"text":"Bernal-stacked multilayer graphene is a versatile platform to explore quantum transport phenomena and interaction physics due to its exceptional tunability via electrostatic gating. For instance, upon applying a perpendicular electric field, its band structure exhibits several off-center Dirac points (so-called Dirac gullies) in each valley. Here, the formation of Dirac gullies and the interaction-induced breakdown of gully coherence is explored via magnetotransport measurements in high-quality Bernal-stacked (ABA) trilayer graphene. At zero magnetic field, multiple Lifshitz transitions indicating the formation of Dirac gullies are identified. In the quantum Hall regime, the emergence of Dirac gullies is evident as an increase in Landau level degeneracy. When tuning both electric and magnetic fields, electron–electron interactions can be controllably enhanced until, beyond critical electric and magnetic fields, the gully degeneracy is eventually lifted. The arising correlated ground state is consistent with a previously predicted nematic phase that spontaneously breaks the rotational gully symmetry.","lang":"eng"}],"publication_status":"published","publication_identifier":{"eissn":["15306992"],"issn":["15306984"]},"year":"2022","isi":1,"external_id":{"isi":["000809056900019"],"arxiv":["2109.00556"]},"publication":"Nano Letters","status":"public","acknowledgement":"We acknowledge funding from the Center for Nanoscience (CeNS) and by the Deutsche\r\nForschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy-EXC-2111-390814868 (MCQST). K.W. and T.T. acknowledge support from the Elemental Strategy Initiative conducted by the MEXT, Japan (Grant Number PMXP0112101001) and JSPS KAKENHI (Grant Numbers 19H05790 and JP20H00354).","date_published":"2022-04-27T00:00:00Z","article_processing_charge":"No","doi":"10.1021/acs.nanolett.2c00435","publisher":"American Chemical Society","_id":"11379","date_updated":"2023-08-03T07:12:45Z","type":"journal_article","page":"3317-3322","main_file_link":[{"open_access":"1","url":" https://doi.org/10.48550/arXiv.2109.00556"}],"quality_controlled":"1"},{"abstract":[{"lang":"eng","text":"Thermalizing and localized many-body quantum systems present two distinct dynamical phases of matter. Recently the fate of a localized system coupled to a thermalizing system viewed as a quantum bath received significant theoretical and experimental attention. In this work, we study a mobile impurity, representing a small quantum bath, that interacts locally with an Anderson insulator with a finite density of localized particles. Using static Hartree approximation to obtain an effective disorder strength, we formulate an analytic criterion for the perturbative stability of the localization. Next, we use an approximate dynamical Hartree method and the quasi-exact time-evolved block decimation (TEBD) algorithm to study the dynamics of the system. We find that the dynamical Hartree approach which completely ignores entanglement between the impurity and localized particles predicts the delocalization of the system. In contrast, the full numerical simulation of the unitary dynamics with TEBD suggests the stability of localization on numerically accessible timescales. Finally, using an extension of the density matrix renormalization group algorithm to excited states (DMRG-X), we approximate the highly excited eigenstates of the system. We find that the impurity remains localized in the eigenstates and entanglement is enhanced in a finite region around the position of the impurity, confirming the dynamical predictions. Dynamics and the DMRG-X results provide compelling evidence for the stability of localization."}],"intvolume":"       105","acknowledged_ssus":[{"_id":"ScienComp"}],"publication_status":"published","publication_identifier":{"eissn":["2469-9969"],"issn":["2469-9950"]},"oa_version":"Preprint","title":"Localization of a mobile impurity interacting with an Anderson insulator","author":[{"first_name":"Pietro","orcid":"0000-0002-7969-2729","last_name":"Brighi","full_name":"Brighi, Pietro","id":"4115AF5C-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Alexios","orcid":"0000-0002-8443-1064","full_name":"Michailidis, Alexios","id":"36EBAD38-F248-11E8-B48F-1D18A9856A87","last_name":"Michailidis"},{"first_name":"Kristina","id":"4aeda2ae-f847-11ec-98e0-c4a66fe174d4","full_name":"Kirova, Kristina","last_name":"Kirova"},{"last_name":"Abanin","full_name":"Abanin, Dmitry A.","first_name":"Dmitry A."},{"last_name":"Serbyn","id":"47809E7E-F248-11E8-B48F-1D18A9856A87","full_name":"Serbyn, Maksym","first_name":"Maksym","orcid":"0000-0002-2399-5827"}],"day":"27","article_type":"original","date_created":"2022-06-29T20:19:51Z","volume":105,"language":[{"iso":"eng"}],"oa":1,"user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","issue":"22","citation":{"short":"P. Brighi, A. Michailidis, K. Kirova, D.A. Abanin, M. Serbyn, Physical Review B 105 (2022).","ieee":"P. Brighi, A. Michailidis, K. Kirova, D. A. Abanin, and M. Serbyn, “Localization of a mobile impurity interacting with an Anderson insulator,” <i>Physical Review B</i>, vol. 105, no. 22. American Physical Society, 2022.","ama":"Brighi P, Michailidis A, Kirova K, Abanin DA, Serbyn M. Localization of a mobile impurity interacting with an Anderson insulator. <i>Physical Review B</i>. 2022;105(22). doi:<a href=\"https://doi.org/10.1103/physrevb.105.224208\">10.1103/physrevb.105.224208</a>","mla":"Brighi, Pietro, et al. “Localization of a Mobile Impurity Interacting with an Anderson Insulator.” <i>Physical Review B</i>, vol. 105, no. 22, 224208, American Physical Society, 2022, doi:<a href=\"https://doi.org/10.1103/physrevb.105.224208\">10.1103/physrevb.105.224208</a>.","apa":"Brighi, P., Michailidis, A., Kirova, K., Abanin, D. A., &#38; Serbyn, M. (2022). Localization of a mobile impurity interacting with an Anderson insulator. <i>Physical Review B</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physrevb.105.224208\">https://doi.org/10.1103/physrevb.105.224208</a>","chicago":"Brighi, Pietro, Alexios Michailidis, Kristina Kirova, Dmitry A. Abanin, and Maksym Serbyn. “Localization of a Mobile Impurity Interacting with an Anderson Insulator.” <i>Physical Review B</i>. American Physical Society, 2022. <a href=\"https://doi.org/10.1103/physrevb.105.224208\">https://doi.org/10.1103/physrevb.105.224208</a>.","ista":"Brighi P, Michailidis A, Kirova K, Abanin DA, Serbyn M. 2022. Localization of a mobile impurity interacting with an Anderson insulator. Physical Review B. 105(22), 224208."},"arxiv":1,"month":"06","article_number":"224208","department":[{"_id":"MaSe"}],"quality_controlled":"1","main_file_link":[{"open_access":"1","url":" https://doi.org/10.48550/arXiv.2111.08603 Focus to learn more"}],"publisher":"American Physical Society","doi":"10.1103/physrevb.105.224208","article_processing_charge":"No","type":"journal_article","date_updated":"2023-09-05T12:12:52Z","_id":"11469","project":[{"_id":"23841C26-32DE-11EA-91FC-C7463DDC885E","name":"Non-Ergodic Quantum Matter: Universality, Dynamics and Control","grant_number":"850899","call_identifier":"H2020"}],"status":"public","publication":"Physical Review B","date_published":"2022-06-27T00:00:00Z","acknowledgement":"We thank M. Ljubotina for insightful discussions. P. B., A. M. and M. S. acknowledge support by the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (Grant Agreement No. 850899). D. A. was supported by the Swiss National Science Foundation and by the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (Grant Agreement No. 864597). The development of parallel TEBD code was supported by S. Elefante from the Scientific Computing (SciComp) that is part of Scientific Service Units (SSU) of IST Austria. Some of the computations were performed on the Baobab cluster of the University of Geneva.","ec_funded":1,"external_id":{"arxiv":["2111.08603"],"isi":["000823050000001"]},"related_material":{"record":[{"relation":"dissertation_contains","status":"public","id":"12732"}]},"isi":1,"year":"2022"},{"external_id":{"arxiv":["2109.07332"],"isi":["000823050000012"]},"related_material":{"record":[{"id":"12732","status":"public","relation":"dissertation_contains"}]},"isi":1,"year":"2022","date_published":"2022-06-27T00:00:00Z","acknowledgement":"We acknowledge useful discussions with M. Ljubotina. P. B., A. M., and M. S. were supported by the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (Grant Agreement No. 850899). D.A. was supported by the Swiss National Science Foundation and by the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (Grant Agreement No. 864597). The development of parallel TEBD code was was supported by S. Elefante from the Scientific Computing (SciComp) that is part of Scientific Service Units (SSU) of IST Austria. Some of the computations were performed on the Baobab cluster of the University of Geneva.","ec_funded":1,"project":[{"_id":"23841C26-32DE-11EA-91FC-C7463DDC885E","grant_number":"850899","name":"Non-Ergodic Quantum Matter: Universality, Dynamics and Control","call_identifier":"H2020"}],"publication":"Physical Review B","status":"public","type":"journal_article","date_updated":"2023-08-03T07:23:52Z","_id":"11470","publisher":"American Physical Society","doi":"10.1103/physrevb.105.l220203","article_processing_charge":"No","quality_controlled":"1","main_file_link":[{"open_access":"1","url":" https://doi.org/10.48550/arXiv.2109.07332"}],"article_number":"L220203","department":[{"_id":"MaSe"}],"arxiv":1,"month":"06","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","issue":"22","citation":{"short":"P. Brighi, A.A. Michailidis, D.A. Abanin, M. Serbyn, Physical Review B 105 (2022).","ieee":"P. Brighi, A. A. Michailidis, D. A. Abanin, and M. Serbyn, “Propagation of many-body localization in an Anderson insulator,” <i>Physical Review B</i>, vol. 105, no. 22. American Physical Society, 2022.","ama":"Brighi P, Michailidis AA, Abanin DA, Serbyn M. Propagation of many-body localization in an Anderson insulator. <i>Physical Review B</i>. 2022;105(22). doi:<a href=\"https://doi.org/10.1103/physrevb.105.l220203\">10.1103/physrevb.105.l220203</a>","mla":"Brighi, Pietro, et al. “Propagation of Many-Body Localization in an Anderson Insulator.” <i>Physical Review B</i>, vol. 105, no. 22, L220203, American Physical Society, 2022, doi:<a href=\"https://doi.org/10.1103/physrevb.105.l220203\">10.1103/physrevb.105.l220203</a>.","apa":"Brighi, P., Michailidis, A. A., Abanin, D. A., &#38; Serbyn, M. (2022). Propagation of many-body localization in an Anderson insulator. <i>Physical Review B</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physrevb.105.l220203\">https://doi.org/10.1103/physrevb.105.l220203</a>","chicago":"Brighi, Pietro, Alexios A. Michailidis, Dmitry A. Abanin, and Maksym Serbyn. “Propagation of Many-Body Localization in an Anderson Insulator.” <i>Physical Review B</i>. American Physical Society, 2022. <a href=\"https://doi.org/10.1103/physrevb.105.l220203\">https://doi.org/10.1103/physrevb.105.l220203</a>.","ista":"Brighi P, Michailidis AA, Abanin DA, Serbyn M. 2022. Propagation of many-body localization in an Anderson insulator. Physical Review B. 105(22), L220203."},"language":[{"iso":"eng"}],"oa":1,"article_type":"original","date_created":"2022-06-29T20:20:47Z","volume":105,"title":"Propagation of many-body localization in an Anderson insulator","oa_version":"Preprint","author":[{"first_name":"Pietro","orcid":"0000-0002-7969-2729","last_name":"Brighi","id":"4115AF5C-F248-11E8-B48F-1D18A9856A87","full_name":"Brighi, Pietro"},{"last_name":"Michailidis","full_name":"Michailidis, Alexios A.","first_name":"Alexios A."},{"full_name":"Abanin, Dmitry A.","last_name":"Abanin","first_name":"Dmitry A."},{"orcid":"0000-0002-2399-5827","first_name":"Maksym","last_name":"Serbyn","id":"47809E7E-F248-11E8-B48F-1D18A9856A87","full_name":"Serbyn, Maksym"}],"day":"27","publication_status":"published","publication_identifier":{"issn":["2469-9950"],"eissn":["2469-9969"]},"intvolume":"       105","abstract":[{"text":"Many-body localization (MBL) is an example of a dynamical phase of matter that avoids thermalization. While the MBL phase is robust to weak local perturbations, the fate of an MBL system coupled to a thermalizing quantum system that represents a “heat bath” is an open question that is actively investigated theoretically and experimentally. In this work, we consider the stability of an Anderson insulator with a finite density of particles interacting with a single mobile impurity—a small quantum bath. We give perturbative arguments that support the stability of localization in the strong interaction regime. Large-scale tensor network simulations of dynamics are employed to corroborate the presence of the localized phase and give quantitative predictions in the thermodynamic limit. We develop a phenomenological description of the dynamics in the strong interaction regime, and we demonstrate that the impurity effectively turns the Anderson insulator into an MBL phase, giving rise to nontrivial entanglement dynamics well captured by our phenomenology.","lang":"eng"}],"acknowledged_ssus":[{"_id":"ScienComp"}]},{"keyword":["General Medicine"],"related_material":{"record":[{"relation":"dissertation_contains","status":"public","id":"14622"}]},"external_id":{"arxiv":["2201.08194"],"isi":["000822564300001"]},"year":"2022","isi":1,"acknowledgement":"We thank Marco Cerezo, Zoe Holmes, and Nicholas Hunter-Jones for fruitful discussion and valuable feedback. We also acknowledge Adam Smith, Johannes Jakob Meyer, and Victor V. Albert for comments on the paper. The simulations were performed in the Julia programming\r\nlanguage [65] using the Yao module [66]. S.H.S., R.A.M., A.A.M. and M.S. acknowledge support by the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (Grant Agreement No. 850899).","date_published":"2022-06-29T00:00:00Z","ec_funded":1,"status":"public","publication":"PRX Quantum","project":[{"_id":"23841C26-32DE-11EA-91FC-C7463DDC885E","grant_number":"850899","name":"Non-Ergodic Quantum Matter: Universality, Dynamics and Control","call_identifier":"H2020"}],"type":"journal_article","_id":"11471","date_updated":"2023-12-13T14:47:24Z","publisher":"American Physical Society","article_processing_charge":"No","doi":"10.1103/prxquantum.3.020365","quality_controlled":"1","ddc":["530"],"article_number":"020365","file":[{"checksum":"a7706b28d24a0e32a55ea04b82a2df43","relation":"main_file","content_type":"application/pdf","access_level":"open_access","file_name":"2022_PRXQuantum_Sack.pdf","success":1,"file_id":"11472","date_updated":"2022-06-30T07:14:48Z","creator":"dernst","date_created":"2022-06-30T07:14:48Z","file_size":4231591}],"department":[{"_id":"MaSe"}],"month":"06","arxiv":1,"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","citation":{"short":"S. Sack, R.A. Medina Ramos, A. Michailidis, R. Kueng, M. Serbyn, PRX Quantum 3 (2022).","ieee":"S. Sack, R. A. Medina Ramos, A. Michailidis, R. Kueng, and M. Serbyn, “Avoiding barren plateaus using classical shadows,” <i>PRX Quantum</i>, vol. 3, no. 2. American Physical Society, 2022.","ama":"Sack S, Medina Ramos RA, Michailidis A, Kueng R, Serbyn M. Avoiding barren plateaus using classical shadows. <i>PRX Quantum</i>. 2022;3(2). doi:<a href=\"https://doi.org/10.1103/prxquantum.3.020365\">10.1103/prxquantum.3.020365</a>","mla":"Sack, Stefan, et al. “Avoiding Barren Plateaus Using Classical Shadows.” <i>PRX Quantum</i>, vol. 3, no. 2, 020365, American Physical Society, 2022, doi:<a href=\"https://doi.org/10.1103/prxquantum.3.020365\">10.1103/prxquantum.3.020365</a>.","apa":"Sack, S., Medina Ramos, R. A., Michailidis, A., Kueng, R., &#38; Serbyn, M. (2022). Avoiding barren plateaus using classical shadows. <i>PRX Quantum</i>. American Physical Society. <a href=\"https://doi.org/10.1103/prxquantum.3.020365\">https://doi.org/10.1103/prxquantum.3.020365</a>","chicago":"Sack, Stefan, Raimel A Medina Ramos, Alexios Michailidis, Richard Kueng, and Maksym Serbyn. “Avoiding Barren Plateaus Using Classical Shadows.” <i>PRX Quantum</i>. American Physical Society, 2022. <a href=\"https://doi.org/10.1103/prxquantum.3.020365\">https://doi.org/10.1103/prxquantum.3.020365</a>.","ista":"Sack S, Medina Ramos RA, Michailidis A, Kueng R, Serbyn M. 2022. Avoiding barren plateaus using classical shadows. PRX Quantum. 3(2), 020365."},"issue":"2","language":[{"iso":"eng"}],"oa":1,"date_created":"2022-06-29T20:21:32Z","article_type":"original","volume":3,"title":"Avoiding barren plateaus using classical shadows","oa_version":"Published Version","day":"29","author":[{"id":"dd622248-f6e0-11ea-865d-ce382a1c81a5","full_name":"Sack, Stefan","last_name":"Sack","orcid":"0000-0001-5400-8508","first_name":"Stefan"},{"id":"CE680B90-D85A-11E9-B684-C920E6697425","full_name":"Medina Ramos, Raimel A","last_name":"Medina Ramos","orcid":"0000-0002-5383-2869","first_name":"Raimel A"},{"last_name":"Michailidis","full_name":"Michailidis, Alexios","id":"36EBAD38-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-8443-1064","first_name":"Alexios"},{"full_name":"Kueng, Richard","last_name":"Kueng","first_name":"Richard"},{"orcid":"0000-0002-2399-5827","first_name":"Maksym","last_name":"Serbyn","id":"47809E7E-F248-11E8-B48F-1D18A9856A87","full_name":"Serbyn, Maksym"}],"file_date_updated":"2022-06-30T07:14:48Z","publication_status":"published","publication_identifier":{"issn":["2691-3399"]},"tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","short":"CC BY (4.0)"},"intvolume":"         3","abstract":[{"text":"Variational quantum algorithms are promising algorithms for achieving quantum advantage on nearterm devices. The quantum hardware is used to implement a variational wave function and measure observables, whereas the classical computer is used to store and update the variational parameters. The optimization landscape of expressive variational ansätze is however dominated by large regions in parameter space, known as barren plateaus, with vanishing gradients, which prevents efficient optimization. In this work we propose a general algorithm to avoid barren plateaus in the initialization and throughout the optimization. To this end we define a notion of weak barren plateaus (WBPs) based on the entropies of local reduced density matrices. The presence of WBPs can be efficiently quantified using recently introduced shadow tomography of the quantum state with a classical computer. We demonstrate that avoidance of WBPs suffices to ensure sizable gradients in the initialization. In addition, we demonstrate that decreasing the gradient step size, guided by the entropies allows WBPs to be avoided during the optimization process. This paves the way for efficient barren plateau-free optimization on near-term devices. ","lang":"eng"}],"has_accepted_license":"1"},{"publication_status":"published","publication_identifier":{"eissn":["1089-7682"],"issn":["1054-1500"]},"file_date_updated":"2023-01-30T09:41:12Z","has_accepted_license":"1","tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","short":"CC BY (4.0)"},"abstract":[{"text":"Theoretical foundations of chaos have been predominantly laid out for finite-dimensional dynamical systems, such as the three-body problem in classical mechanics and the Lorenz model in dissipative systems. In contrast, many real-world chaotic phenomena, e.g., weather, arise in systems with many (formally infinite) degrees of freedom, which limits direct quantitative analysis of such systems using chaos theory. In the present work, we demonstrate that the hydrodynamic pilot-wave systems offer a bridge between low- and high-dimensional chaotic phenomena by allowing for a systematic study of how the former connects to the latter. Specifically, we present experimental results, which show the formation of low-dimensional chaotic attractors upon destabilization of regular dynamics and a final transition to high-dimensional chaos via the merging of distinct chaotic regions through a crisis bifurcation. Moreover, we show that the post-crisis dynamics of the system can be rationalized as consecutive scatterings from the nonattracting chaotic sets with lifetimes following exponential distributions. ","lang":"eng"}],"intvolume":"        32","volume":32,"article_type":"original","date_created":"2023-01-16T09:58:16Z","author":[{"first_name":"George H","last_name":"Choueiri","full_name":"Choueiri, George H","id":"448BD5BC-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Suri, Balachandra","id":"47A5E706-F248-11E8-B48F-1D18A9856A87","last_name":"Suri","first_name":"Balachandra"},{"id":"4515C308-F248-11E8-B48F-1D18A9856A87","full_name":"Merrin, Jack","last_name":"Merrin","first_name":"Jack","orcid":"0000-0001-5145-4609"},{"orcid":"0000-0002-2399-5827","first_name":"Maksym","full_name":"Serbyn, Maksym","id":"47809E7E-F248-11E8-B48F-1D18A9856A87","last_name":"Serbyn"},{"orcid":"0000-0003-2057-2754","first_name":"Björn","id":"3A374330-F248-11E8-B48F-1D18A9856A87","full_name":"Hof, Björn","last_name":"Hof"},{"last_name":"Budanur","id":"3EA1010E-F248-11E8-B48F-1D18A9856A87","full_name":"Budanur, Nazmi B","first_name":"Nazmi B","orcid":"0000-0003-0423-5010"}],"scopus_import":"1","day":"26","title":"Crises and chaotic scattering in hydrodynamic pilot-wave experiments","oa_version":"Published Version","issue":"9","citation":{"ieee":"G. H. Choueiri, B. Suri, J. Merrin, M. Serbyn, B. Hof, and N. B. Budanur, “Crises and chaotic scattering in hydrodynamic pilot-wave experiments,” <i>Chaos: An Interdisciplinary Journal of Nonlinear Science</i>, vol. 32, no. 9. AIP Publishing, 2022.","short":"G.H. Choueiri, B. Suri, J. Merrin, M. Serbyn, B. Hof, N.B. Budanur, Chaos: An Interdisciplinary Journal of Nonlinear Science 32 (2022).","ama":"Choueiri GH, Suri B, Merrin J, Serbyn M, Hof B, Budanur NB. Crises and chaotic scattering in hydrodynamic pilot-wave experiments. <i>Chaos: An Interdisciplinary Journal of Nonlinear Science</i>. 2022;32(9). doi:<a href=\"https://doi.org/10.1063/5.0102904\">10.1063/5.0102904</a>","apa":"Choueiri, G. H., Suri, B., Merrin, J., Serbyn, M., Hof, B., &#38; Budanur, N. B. (2022). Crises and chaotic scattering in hydrodynamic pilot-wave experiments. <i>Chaos: An Interdisciplinary Journal of Nonlinear Science</i>. AIP Publishing. <a href=\"https://doi.org/10.1063/5.0102904\">https://doi.org/10.1063/5.0102904</a>","mla":"Choueiri, George H., et al. “Crises and Chaotic Scattering in Hydrodynamic Pilot-Wave Experiments.” <i>Chaos: An Interdisciplinary Journal of Nonlinear Science</i>, vol. 32, no. 9, 093138, AIP Publishing, 2022, doi:<a href=\"https://doi.org/10.1063/5.0102904\">10.1063/5.0102904</a>.","chicago":"Choueiri, George H, Balachandra Suri, Jack Merrin, Maksym Serbyn, Björn Hof, and Nazmi B Budanur. “Crises and Chaotic Scattering in Hydrodynamic Pilot-Wave Experiments.” <i>Chaos: An Interdisciplinary Journal of Nonlinear Science</i>. AIP Publishing, 2022. <a href=\"https://doi.org/10.1063/5.0102904\">https://doi.org/10.1063/5.0102904</a>.","ista":"Choueiri GH, Suri B, Merrin J, Serbyn M, Hof B, Budanur NB. 2022. Crises and chaotic scattering in hydrodynamic pilot-wave experiments. Chaos: An Interdisciplinary Journal of Nonlinear Science. 32(9), 093138."},"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","oa":1,"language":[{"iso":"eng"}],"department":[{"_id":"MaSe"},{"_id":"BjHo"},{"_id":"NanoFab"}],"article_number":"093138","file":[{"relation":"main_file","checksum":"17881eff8b21969359a2dd64620120ba","file_name":"2022_Chaos_Choueiri.pdf","success":1,"content_type":"application/pdf","access_level":"open_access","file_id":"12445","file_size":3209644,"date_created":"2023-01-30T09:41:12Z","date_updated":"2023-01-30T09:41:12Z","creator":"dernst"}],"arxiv":1,"month":"09","quality_controlled":"1","ddc":["530"],"date_updated":"2023-08-04T09:51:17Z","_id":"12259","type":"journal_article","doi":"10.1063/5.0102904","article_processing_charge":"No","publisher":"AIP Publishing","date_published":"2022-09-26T00:00:00Z","acknowledgement":"This work was partially funded by the Institute of Science and Technology Austria Interdisciplinary Project Committee Grant “Pilot-Wave Hydrodynamics: Chaos and Quantum Analogies.”","publication":"Chaos: An Interdisciplinary Journal of Nonlinear Science","status":"public","keyword":["Applied Mathematics","General Physics and Astronomy","Mathematical Physics","Statistical and Nonlinear Physics"],"isi":1,"year":"2022","external_id":{"isi":["000861009600005"],"arxiv":["2206.01531"]}},{"type":"journal_article","date_updated":"2023-01-30T11:05:23Z","_id":"12276","publisher":"American Physical Society","doi":"10.1103/prxquantum.3.030343","article_processing_charge":"No","quality_controlled":"1","ddc":["530"],"keyword":["General Medicine"],"external_id":{"arxiv":["2204.02899"]},"year":"2022","acknowledgement":"We thank A. A. Michailidis for insightful discussions. M.L. and M.S. acknowledge support from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (Grant Agreement No. 850899). D.A. is supported by the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (Grant Agreement No. 864597) and by the Swiss National Science Foundation. The infinite TEBD simulations were performed using the ITensor library [67].","date_published":"2022-09-23T00:00:00Z","ec_funded":1,"project":[{"call_identifier":"H2020","name":"Non-Ergodic Quantum Matter: Universality, Dynamics and Control","grant_number":"850899","_id":"23841C26-32DE-11EA-91FC-C7463DDC885E"}],"status":"public","publication":"PRX Quantum","article_type":"original","date_created":"2023-01-16T10:01:56Z","volume":3,"title":"Optimal steering of matrix product states and quantum many-body scars","oa_version":"Published Version","author":[{"last_name":"Ljubotina","id":"F75EE9BE-5C90-11EA-905D-16643DDC885E","full_name":"Ljubotina, Marko","first_name":"Marko"},{"last_name":"Roos","full_name":"Roos, Barbara","id":"5DA90512-D80F-11E9-8994-2E2EE6697425","orcid":"0000-0002-9071-5880","first_name":"Barbara"},{"first_name":"Dmitry A.","full_name":"Abanin, Dmitry A.","last_name":"Abanin"},{"orcid":"0000-0002-2399-5827","first_name":"Maksym","full_name":"Serbyn, Maksym","id":"47809E7E-F248-11E8-B48F-1D18A9856A87","last_name":"Serbyn"}],"scopus_import":"1","day":"23","publication_identifier":{"eissn":["2691-3399"]},"publication_status":"published","file_date_updated":"2023-01-30T11:02:50Z","tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","short":"CC BY (4.0)"},"intvolume":"         3","abstract":[{"lang":"eng","text":"Ongoing development of quantum simulators allows for a progressively finer degree of control of quantum many-body systems. This motivates the development of efficient approaches to facilitate the control of such systems and enable the preparation of nontrivial quantum states. Here we formulate an approach to control quantum systems based on matrix product states (MPSs). We compare counterdiabatic and leakage minimization approaches to the so-called local steering problem that consists in finding the best value of the control parameters for generating a unitary evolution of the specific MPS in a given direction. In order to benchmark the different approaches, we apply them to the generalization of the PXP model known to exhibit coherent quantum dynamics due to quantum many-body scars. We find that the leakage-based approach generally outperforms the counterdiabatic framework and use it to construct a Floquet model with quantum scars. We perform the first steps towards global trajectory optimization and demonstrate entanglement steering capabilities in the generalized PXP model. Finally, we apply our leakage minimization approach to construct quantum scars in the periodically driven nonintegrable Ising model."}],"has_accepted_license":"1","file":[{"file_name":"2022_PRXQuantum_Ljubotina.pdf","success":1,"content_type":"application/pdf","access_level":"open_access","relation":"main_file","checksum":"ef8f0a1b5a019b3958009162de0fa4c3","file_size":7661905,"date_created":"2023-01-30T11:02:50Z","date_updated":"2023-01-30T11:02:50Z","creator":"dernst","file_id":"12457"}],"article_number":"030343","department":[{"_id":"MaSe"},{"_id":"RoSe"}],"arxiv":1,"month":"09","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","issue":"3","citation":{"ama":"Ljubotina M, Roos B, Abanin DA, Serbyn M. Optimal steering of matrix product states and quantum many-body scars. <i>PRX Quantum</i>. 2022;3(3). doi:<a href=\"https://doi.org/10.1103/prxquantum.3.030343\">10.1103/prxquantum.3.030343</a>","short":"M. Ljubotina, B. Roos, D.A. Abanin, M. Serbyn, PRX Quantum 3 (2022).","ieee":"M. Ljubotina, B. Roos, D. A. Abanin, and M. Serbyn, “Optimal steering of matrix product states and quantum many-body scars,” <i>PRX Quantum</i>, vol. 3, no. 3. American Physical Society, 2022.","chicago":"Ljubotina, Marko, Barbara Roos, Dmitry A. Abanin, and Maksym Serbyn. “Optimal Steering of Matrix Product States and Quantum Many-Body Scars.” <i>PRX Quantum</i>. American Physical Society, 2022. <a href=\"https://doi.org/10.1103/prxquantum.3.030343\">https://doi.org/10.1103/prxquantum.3.030343</a>.","ista":"Ljubotina M, Roos B, Abanin DA, Serbyn M. 2022. Optimal steering of matrix product states and quantum many-body scars. PRX Quantum. 3(3), 030343.","mla":"Ljubotina, Marko, et al. “Optimal Steering of Matrix Product States and Quantum Many-Body Scars.” <i>PRX Quantum</i>, vol. 3, no. 3, 030343, American Physical Society, 2022, doi:<a href=\"https://doi.org/10.1103/prxquantum.3.030343\">10.1103/prxquantum.3.030343</a>.","apa":"Ljubotina, M., Roos, B., Abanin, D. A., &#38; Serbyn, M. (2022). Optimal steering of matrix product states and quantum many-body scars. <i>PRX Quantum</i>. American Physical Society. <a href=\"https://doi.org/10.1103/prxquantum.3.030343\">https://doi.org/10.1103/prxquantum.3.030343</a>"},"language":[{"iso":"eng"}],"oa":1},{"doi":"10.48550/arXiv.2210.15607","author":[{"last_name":"Brighi","id":"4115AF5C-F248-11E8-B48F-1D18A9856A87","full_name":"Brighi, Pietro","first_name":"Pietro","orcid":"0000-0002-7969-2729"},{"last_name":"Ljubotina","id":"F75EE9BE-5C90-11EA-905D-16643DDC885E","full_name":"Ljubotina, Marko","orcid":"0000-0003-0038-7068","first_name":"Marko"},{"last_name":"Serbyn","full_name":"Serbyn, Maksym","id":"47809E7E-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-2399-5827","first_name":"Maksym"}],"day":"07","article_processing_charge":"No","oa_version":"Preprint","title":"Hilbert space fragmentation and slow dynamics in particle-conserving quantum East models","date_updated":"2023-09-20T10:46:29Z","_id":"12750","type":"preprint","date_created":"2023-03-23T14:33:13Z","license":"https://creativecommons.org/licenses/by-nc-sa/4.0/","tmp":{"image":"/images/cc_by_nc_sa.png","name":"Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","legal_code_url":"https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode","short":"CC BY-NC-SA (4.0)"},"abstract":[{"lang":"eng","text":"Quantum kinetically constrained models have recently attracted significant attention due to their anomalous dynamics and thermalization. In this work, we introduce a hitherto unexplored family of kinetically constrained models featuring a conserved particle number and strong inversion-symmetry breaking due to facilitated hopping. We demonstrate that these models provide a generic example of so-called quantum Hilbert space fragmentation, that is manifested in disconnected sectors in the Hilbert space that are not apparent in the computational basis. Quantum Hilbert space fragmentation leads to an exponential in system size number of eigenstates with exactly zero entanglement entropy across several bipartite cuts. These eigenstates can be probed dynamically using quenches from simple initial product states. In addition, we study the particle spreading under unitary dynamics launched from the domain wall state, and find faster than diffusive dynamics at high particle densities, that crosses over into logarithmically slow relaxation at smaller densities. Using a classically simulable cellular automaton, we reproduce the logarithmic dynamics observed in the quantum case. Our work suggests that particle conserving constrained models with inversion symmetry breaking realize so far unexplored universality classes of dynamics and invite their further theoretical and experimental studies."}],"main_file_link":[{"url":"https://doi.org/10.48550/arXiv.2210.15607","open_access":"1"}],"publication_status":"submitted","year":"2022","external_id":{"arxiv":["2210.15607"]},"related_material":{"record":[{"status":"public","relation":"dissertation_contains","id":"12732"},{"id":"14334","status":"public","relation":"later_version"}]},"month":"11","arxiv":1,"department":[{"_id":"GradSch"},{"_id":"MaSe"}],"article_number":"2210.15607","oa":1,"language":[{"iso":"eng"}],"publication":"arXiv","status":"public","citation":{"apa":"Brighi, P., Ljubotina, M., &#38; Serbyn, M. (n.d.). Hilbert space fragmentation and slow dynamics in particle-conserving quantum East models. <i>arXiv</i>. <a href=\"https://doi.org/10.48550/arXiv.2210.15607\">https://doi.org/10.48550/arXiv.2210.15607</a>","mla":"Brighi, Pietro, et al. “Hilbert Space Fragmentation and Slow Dynamics in Particle-Conserving Quantum East Models.” <i>ArXiv</i>, 2210.15607, doi:<a href=\"https://doi.org/10.48550/arXiv.2210.15607\">10.48550/arXiv.2210.15607</a>.","chicago":"Brighi, Pietro, Marko Ljubotina, and Maksym Serbyn. “Hilbert Space Fragmentation and Slow Dynamics in Particle-Conserving Quantum East Models.” <i>ArXiv</i>, n.d. <a href=\"https://doi.org/10.48550/arXiv.2210.15607\">https://doi.org/10.48550/arXiv.2210.15607</a>.","ista":"Brighi P, Ljubotina M, Serbyn M. Hilbert space fragmentation and slow dynamics in particle-conserving quantum East models. arXiv, 2210.15607.","ieee":"P. Brighi, M. Ljubotina, and M. Serbyn, “Hilbert space fragmentation and slow dynamics in particle-conserving quantum East models,” <i>arXiv</i>. .","short":"P. Brighi, M. Ljubotina, M. Serbyn, ArXiv (n.d.).","ama":"Brighi P, Ljubotina M, Serbyn M. Hilbert space fragmentation and slow dynamics in particle-conserving quantum East models. <i>arXiv</i>. doi:<a href=\"https://doi.org/10.48550/arXiv.2210.15607\">10.48550/arXiv.2210.15607</a>"},"date_published":"2022-11-07T00:00:00Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87"},{"user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","issue":"4","citation":{"ama":"De Nicola S, Michailidis A, Serbyn M. Entanglement view of dynamical quantum phase transitions. <i>Physical Review Letters</i>. 2021;126(4). doi:<a href=\"https://doi.org/10.1103/physrevlett.126.040602\">10.1103/physrevlett.126.040602</a>","short":"S. De Nicola, A. Michailidis, M. Serbyn, Physical Review Letters 126 (2021).","ieee":"S. De Nicola, A. Michailidis, and M. Serbyn, “Entanglement view of dynamical quantum phase transitions,” <i>Physical Review Letters</i>, vol. 126, no. 4. American Physical Society, 2021.","chicago":"De Nicola, Stefano, Alexios Michailidis, and Maksym Serbyn. “Entanglement View of Dynamical Quantum Phase Transitions.” <i>Physical Review Letters</i>. American Physical Society, 2021. <a href=\"https://doi.org/10.1103/physrevlett.126.040602\">https://doi.org/10.1103/physrevlett.126.040602</a>.","ista":"De Nicola S, Michailidis A, Serbyn M. 2021. Entanglement view of dynamical quantum phase transitions. Physical Review Letters. 126(4), 040602.","mla":"De Nicola, Stefano, et al. “Entanglement View of Dynamical Quantum Phase Transitions.” <i>Physical Review Letters</i>, vol. 126, no. 4, 040602, American Physical Society, 2021, doi:<a href=\"https://doi.org/10.1103/physrevlett.126.040602\">10.1103/physrevlett.126.040602</a>.","apa":"De Nicola, S., Michailidis, A., &#38; Serbyn, M. (2021). Entanglement view of dynamical quantum phase transitions. <i>Physical Review Letters</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physrevlett.126.040602\">https://doi.org/10.1103/physrevlett.126.040602</a>"},"language":[{"iso":"eng"}],"oa":1,"article_number":"040602","file":[{"date_updated":"2021-02-03T12:47:04Z","creator":"dernst","file_size":398075,"date_created":"2021-02-03T12:47:04Z","file_id":"9074","content_type":"application/pdf","access_level":"open_access","file_name":"2021_PhysicalRevLett_DeNicola.pdf","success":1,"checksum":"d9acbc502390ed7a97e631d23ae19ecd","relation":"main_file"}],"department":[{"_id":"MaSe"}],"month":"01","arxiv":1,"publication_status":"published","publication_identifier":{"issn":["0031-9007"],"eissn":["1079-7114"]},"file_date_updated":"2021-02-03T12:47:04Z","tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","short":"CC BY (4.0)"},"abstract":[{"text":"The analogy between an equilibrium partition function and the return probability in many-body unitary dynamics has led to the concept of dynamical quantum phase transition (DQPT). DQPTs are defined by nonanalyticities in the return amplitude and are present in many models. In some cases, DQPTs can be related to equilibrium concepts, such as order parameters, yet their universal description is an open question. In this Letter, we provide first steps toward a classification of DQPTs by using a matrix product state description of unitary dynamics in the thermodynamic limit. This allows us to distinguish the two limiting cases of “precession” and “entanglement” DQPTs, which are illustrated using an analytical description in the quantum Ising model. While precession DQPTs are characterized by a large entanglement gap and are semiclassical in their nature, entanglement DQPTs occur near avoided crossings in the entanglement spectrum and can be distinguished by a complex pattern of nonlocal correlations. We demonstrate the existence of precession and entanglement DQPTs beyond Ising models, discuss observables that can distinguish them, and relate their interplay to complex DQPT phenomenology.","lang":"eng"}],"intvolume":"       126","has_accepted_license":"1","article_type":"original","date_created":"2021-02-01T09:20:00Z","volume":126,"title":"Entanglement view of dynamical quantum phase transitions","oa_version":"Published Version","author":[{"last_name":"De Nicola","full_name":"De Nicola, Stefano","id":"42832B76-F248-11E8-B48F-1D18A9856A87","first_name":"Stefano","orcid":"0000-0002-4842-6671"},{"first_name":"Alexios","orcid":"0000-0002-8443-1064","id":"36EBAD38-F248-11E8-B48F-1D18A9856A87","full_name":"Michailidis, Alexios","last_name":"Michailidis"},{"first_name":"Maksym","orcid":"0000-0002-2399-5827","full_name":"Serbyn, Maksym","id":"47809E7E-F248-11E8-B48F-1D18A9856A87","last_name":"Serbyn"}],"day":"29","date_published":"2021-01-29T00:00:00Z","acknowledgement":"S. D. N. acknowledges funding from the Institute of Science and Technology (IST) Austria and from the European Union’s Horizon 2020 Research and Innovation Programme under the Marie Skłodowska-Curie Grant Agreement No. 754411. A. M. and M. S. were supported by the European Research Council (ERC) under the European Union’s Horizon 2020 Research and\r\nInnovation Programme (Grant Agreement No. 850899).","ec_funded":1,"project":[{"grant_number":"754411","name":"ISTplus - Postdoctoral Fellowships","call_identifier":"H2020","_id":"260C2330-B435-11E9-9278-68D0E5697425"},{"call_identifier":"H2020","grant_number":"850899","name":"Non-Ergodic Quantum Matter: Universality, Dynamics and Control","_id":"23841C26-32DE-11EA-91FC-C7463DDC885E"}],"status":"public","publication":"Physical Review Letters","keyword":["General Physics and Astronomy"],"external_id":{"isi":["000613148200001"],"arxiv":["2008.04894"]},"year":"2021","isi":1,"quality_controlled":"1","ddc":["530"],"type":"journal_article","date_updated":"2023-09-05T12:08:58Z","_id":"9048","publisher":"American Physical Society","doi":"10.1103/physrevlett.126.040602","article_processing_charge":"Yes"},{"date_published":"2021-04-01T00:00:00Z","publication":"Annals of Physics","status":"public","year":"2021","isi":1,"external_id":{"arxiv":["1911.04501"],"isi":["000634879800007"]},"main_file_link":[{"url":"https://arxiv.org/abs/1911.04501","open_access":"1"}],"quality_controlled":"1","_id":"9224","date_updated":"2023-08-07T13:58:30Z","type":"journal_article","article_processing_charge":"No","doi":"10.1016/j.aop.2021.168415","publisher":"Elsevier","citation":{"ista":"Abanin DA, Bardarson JH, De Tomasi G, Gopalakrishnan S, Khemani V, Parameswaran SA, Pollmann F, Potter AC, Serbyn M, Vasseur R. 2021. Distinguishing localization from chaos: Challenges in finite-size systems. Annals of Physics. 427(4), 168415.","chicago":"Abanin, D. A., J. H. Bardarson, G. De Tomasi, S. Gopalakrishnan, V. Khemani, S. A. Parameswaran, F. Pollmann, A. C. Potter, Maksym Serbyn, and R. Vasseur. “Distinguishing Localization from Chaos: Challenges in Finite-Size Systems.” <i>Annals of Physics</i>. Elsevier, 2021. <a href=\"https://doi.org/10.1016/j.aop.2021.168415\">https://doi.org/10.1016/j.aop.2021.168415</a>.","apa":"Abanin, D. A., Bardarson, J. H., De Tomasi, G., Gopalakrishnan, S., Khemani, V., Parameswaran, S. A., … Vasseur, R. (2021). Distinguishing localization from chaos: Challenges in finite-size systems. <i>Annals of Physics</i>. Elsevier. <a href=\"https://doi.org/10.1016/j.aop.2021.168415\">https://doi.org/10.1016/j.aop.2021.168415</a>","mla":"Abanin, D. A., et al. “Distinguishing Localization from Chaos: Challenges in Finite-Size Systems.” <i>Annals of Physics</i>, vol. 427, no. 4, 168415, Elsevier, 2021, doi:<a href=\"https://doi.org/10.1016/j.aop.2021.168415\">10.1016/j.aop.2021.168415</a>.","ama":"Abanin DA, Bardarson JH, De Tomasi G, et al. Distinguishing localization from chaos: Challenges in finite-size systems. <i>Annals of Physics</i>. 2021;427(4). doi:<a href=\"https://doi.org/10.1016/j.aop.2021.168415\">10.1016/j.aop.2021.168415</a>","ieee":"D. A. Abanin <i>et al.</i>, “Distinguishing localization from chaos: Challenges in finite-size systems,” <i>Annals of Physics</i>, vol. 427, no. 4. Elsevier, 2021.","short":"D.A. Abanin, J.H. Bardarson, G. De Tomasi, S. Gopalakrishnan, V. Khemani, S.A. Parameswaran, F. Pollmann, A.C. Potter, M. Serbyn, R. Vasseur, Annals of Physics 427 (2021)."},"issue":"4","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","oa":1,"language":[{"iso":"eng"}],"department":[{"_id":"MaSe"}],"article_number":"168415","month":"04","arxiv":1,"publication_status":"published","publication_identifier":{"eissn":["1096035X"],"issn":["00034916"]},"intvolume":"       427","abstract":[{"text":"We re-examine attempts to study the many-body localization transition using measures that are physically natural on the ergodic/quantum chaotic regime of the phase diagram. Using simple scaling arguments and an analysis of various models for which rigorous results are available, we find that these measures can be particularly adversely affected by the strong finite-size effects observed in nearly all numerical studies of many-body localization. This severely impacts their utility in probing the transition and the localized phase. In light of this analysis, we discuss a recent study (Šuntajs et al., 2020) of the behaviour of the Thouless energy and level repulsion in disordered spin chains, and its implications for the question of whether MBL is a true phase of matter.","lang":"eng"}],"volume":427,"date_created":"2021-03-07T23:01:25Z","article_type":"original","scopus_import":"1","day":"01","author":[{"first_name":"D. A.","full_name":"Abanin, D. A.","last_name":"Abanin"},{"full_name":"Bardarson, J. H.","last_name":"Bardarson","first_name":"J. H."},{"first_name":"G.","full_name":"De Tomasi, G.","last_name":"De Tomasi"},{"first_name":"S.","last_name":"Gopalakrishnan","full_name":"Gopalakrishnan, S."},{"first_name":"V.","last_name":"Khemani","full_name":"Khemani, V."},{"full_name":"Parameswaran, S. A.","last_name":"Parameswaran","first_name":"S. A."},{"full_name":"Pollmann, F.","last_name":"Pollmann","first_name":"F."},{"last_name":"Potter","full_name":"Potter, A. C.","first_name":"A. C."},{"last_name":"Serbyn","full_name":"Serbyn, Maksym","id":"47809E7E-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-2399-5827","first_name":"Maksym"},{"first_name":"R.","full_name":"Vasseur, R.","last_name":"Vasseur"}],"title":"Distinguishing localization from chaos: Challenges in finite-size systems","oa_version":"Preprint"},{"ddc":["539"],"page":"675–685","quality_controlled":"1","publisher":"Nature Research","article_processing_charge":"No","doi":"10.1038/s41567-021-01230-2","type":"journal_article","_id":"9428","date_updated":"2023-10-18T08:20:59Z","publication":"Nature Physics","status":"public","project":[{"_id":"23841C26-32DE-11EA-91FC-C7463DDC885E","name":"Non-Ergodic Quantum Matter: Universality, Dynamics and Control","grant_number":"850899","call_identifier":"H2020"}],"date_published":"2021-06-01T00:00:00Z","acknowledgement":"We thank our collaborators K. Bull, S. Choi, J.-Y. Desaules, W. W. Ho, A. Hudomal, M. Lukin, I. Martin, H. Pichler, N. Regnault, I. Vasić and in particular A. Michailidis and C. Turner, without whom this work would not have been possible. We also benefited from discussions with E. Altman, B. A. Bernevig, A. Chandran, P. Fendley, V. Khemani and L. Motrunich. M.S. was supported by the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (grant agreement no. 850899). D.A.A. was supported by the Swiss National Science Foundation and by the ERC under the European Union’s Horizon 2020 research and innovation programme (grant agreement no. 864597). Z.P. acknowledges support by the Leverhulme Trust Research Leadership Award RL-2019-015.","ec_funded":1,"external_id":{"arxiv":["2011.09486"],"isi":["000655563800002"]},"year":"2021","isi":1,"abstract":[{"lang":"eng","text":"Thermalization is the inevitable fate of many complex quantum systems, whose dynamics allow them to fully explore the vast configuration space regardless of the initial state---the behaviour known as quantum ergodicity. In a quest for experimental realizations of coherent long-time dynamics, efforts have focused on ergodicity-breaking mechanisms, such as integrability and localization. The recent discovery of persistent revivals in quantum simulators based on Rydberg atoms have pointed to the existence of a new type of behaviour where the system rapidly relaxes for most initial conditions, while certain initial states give rise to non-ergodic dynamics. This collective effect has been named ”quantum many-body scarring’by analogy with a related form of weak ergodicity breaking that occurs for a single particle inside a stadium billiard potential. In this Review, we provide a pedagogical introduction to quantum many-body scars and highlight the emerging connections with the semiclassical quantization of many-body systems. We discuss the relation between scars and more general routes towards weak violations of ergodicity due to embedded algebras and non-thermal eigenstates, and highlight possible applications of scars in quantum technology."}],"intvolume":"        17","has_accepted_license":"1","file_date_updated":"2021-12-02T23:30:03Z","publication_identifier":{"eissn":["1745-2481"]},"publication_status":"published","oa_version":"Preprint","title":"Quantum many-body scars and weak breaking of ergodicity","day":"01","author":[{"last_name":"Serbyn","full_name":"Serbyn, Maksym","id":"47809E7E-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-2399-5827","first_name":"Maksym"},{"full_name":"Abanin, Dmitry A.","last_name":"Abanin","first_name":"Dmitry A."},{"last_name":"Papić","full_name":"Papić, Zlatko","first_name":"Zlatko"}],"date_created":"2021-05-28T09:03:50Z","article_type":"review","volume":17,"language":[{"iso":"eng"}],"oa":1,"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","citation":{"chicago":"Serbyn, Maksym, Dmitry A. Abanin, and Zlatko Papić. “Quantum Many-Body Scars and Weak Breaking of Ergodicity.” <i>Nature Physics</i>. Nature Research, 2021. <a href=\"https://doi.org/10.1038/s41567-021-01230-2\">https://doi.org/10.1038/s41567-021-01230-2</a>.","ista":"Serbyn M, Abanin DA, Papić Z. 2021. Quantum many-body scars and weak breaking of ergodicity. Nature Physics. 17(6), 675–685.","mla":"Serbyn, Maksym, et al. “Quantum Many-Body Scars and Weak Breaking of Ergodicity.” <i>Nature Physics</i>, vol. 17, no. 6, Nature Research, 2021, pp. 675–685, doi:<a href=\"https://doi.org/10.1038/s41567-021-01230-2\">10.1038/s41567-021-01230-2</a>.","apa":"Serbyn, M., Abanin, D. A., &#38; Papić, Z. (2021). Quantum many-body scars and weak breaking of ergodicity. <i>Nature Physics</i>. Nature Research. <a href=\"https://doi.org/10.1038/s41567-021-01230-2\">https://doi.org/10.1038/s41567-021-01230-2</a>","ama":"Serbyn M, Abanin DA, Papić Z. Quantum many-body scars and weak breaking of ergodicity. <i>Nature Physics</i>. 2021;17(6):675–685. doi:<a href=\"https://doi.org/10.1038/s41567-021-01230-2\">10.1038/s41567-021-01230-2</a>","short":"M. Serbyn, D.A. Abanin, Z. Papić, Nature Physics 17 (2021) 675–685.","ieee":"M. Serbyn, D. A. Abanin, and Z. Papić, “Quantum many-body scars and weak breaking of ergodicity,” <i>Nature Physics</i>, vol. 17, no. 6. Nature Research, pp. 675–685, 2021."},"issue":"6","month":"06","arxiv":1,"file":[{"file_id":"10026","date_updated":"2021-12-02T23:30:03Z","creator":"patrickd","embargo":"2021-12-01","date_created":"2021-09-20T09:27:43Z","file_size":10028836,"checksum":"316ed42ea1b42b0f1a3025bb476266fc","relation":"main_file","content_type":"application/pdf","access_level":"open_access","file_name":"RevisedQMBSreview.pdf"}],"department":[{"_id":"MaSe"}]},{"date_created":"2021-06-29T12:04:05Z","article_type":"original","volume":371,"title":"Controlling quantum many-body dynamics in driven Rydberg atom arrays","oa_version":"Preprint","scopus_import":"1","day":"26","author":[{"last_name":"Bluvstein","full_name":"Bluvstein, D.","first_name":"D."},{"last_name":"Omran","full_name":"Omran, A.","first_name":"A."},{"last_name":"Levine","full_name":"Levine, H.","first_name":"H."},{"last_name":"Keesling","full_name":"Keesling, A.","first_name":"A."},{"full_name":"Semeghini, G.","last_name":"Semeghini","first_name":"G."},{"first_name":"S.","last_name":"Ebadi","full_name":"Ebadi, S."},{"first_name":"T. T.","last_name":"Wang","full_name":"Wang, T. T."},{"full_name":"Michailidis, Alexios","id":"36EBAD38-F248-11E8-B48F-1D18A9856A87","last_name":"Michailidis","orcid":"0000-0002-8443-1064","first_name":"Alexios"},{"first_name":"N.","full_name":"Maskara, N.","last_name":"Maskara"},{"full_name":"Ho, W. W.","last_name":"Ho","first_name":"W. W."},{"full_name":"Choi, S.","last_name":"Choi","first_name":"S."},{"first_name":"Maksym","orcid":"0000-0002-2399-5827","id":"47809E7E-F248-11E8-B48F-1D18A9856A87","full_name":"Serbyn, Maksym","last_name":"Serbyn"},{"full_name":"Greiner, M.","last_name":"Greiner","first_name":"M."},{"last_name":"Vuletić","full_name":"Vuletić, V.","first_name":"V."},{"full_name":"Lukin, M. D.","last_name":"Lukin","first_name":"M. D."}],"file_date_updated":"2021-09-23T14:00:05Z","publication_identifier":{"eissn":["1095-9203"],"issn":["0036-8075"]},"publication_status":"published","abstract":[{"text":"The control of nonequilibrium quantum dynamics in many-body systems is challenging because interactions typically lead to thermalization and a chaotic spreading throughout Hilbert space. We investigate nonequilibrium dynamics after rapid quenches in a many-body system composed of 3 to 200 strongly interacting qubits in one and two spatial dimensions. Using a programmable quantum simulator based on Rydberg atom arrays, we show that coherent revivals associated with so-called quantum many-body scars can be stabilized by periodic driving, which generates a robust subharmonic response akin to discrete time-crystalline order. We map Hilbert space dynamics, geometry dependence, phase diagrams, and system-size dependence of this emergent phenomenon, demonstrating new ways to steer complex dynamics in many-body systems and enabling potential applications in quantum information science.","lang":"eng"}],"intvolume":"       371","has_accepted_license":"1","file":[{"relation":"main_file","checksum":"0b356fd10ab9bb95177d4c047d4e9c1a","success":1,"file_name":"scars_subharmonic_combined_manuscript_2_11_2021 (2)-1.pdf","access_level":"open_access","content_type":"application/pdf","file_id":"10040","file_size":3671159,"date_created":"2021-09-23T14:00:05Z","creator":"patrickd","date_updated":"2021-09-23T14:00:05Z"}],"department":[{"_id":"MaSe"}],"month":"03","arxiv":1,"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","citation":{"short":"D. Bluvstein, A. Omran, H. Levine, A. Keesling, G. Semeghini, S. Ebadi, T.T. Wang, A. Michailidis, N. Maskara, W.W. Ho, S. Choi, M. Serbyn, M. Greiner, V. Vuletić, M.D. Lukin, Science 371 (2021) 1355–1359.","ieee":"D. Bluvstein <i>et al.</i>, “Controlling quantum many-body dynamics in driven Rydberg atom arrays,” <i>Science</i>, vol. 371, no. 6536. AAAS, pp. 1355–1359, 2021.","ama":"Bluvstein D, Omran A, Levine H, et al. Controlling quantum many-body dynamics in driven Rydberg atom arrays. <i>Science</i>. 2021;371(6536):1355-1359. doi:<a href=\"https://doi.org/10.1126/science.abg2530\">10.1126/science.abg2530</a>","mla":"Bluvstein, D., et al. “Controlling Quantum Many-Body Dynamics in Driven Rydberg Atom Arrays.” <i>Science</i>, vol. 371, no. 6536, AAAS, 2021, pp. 1355–59, doi:<a href=\"https://doi.org/10.1126/science.abg2530\">10.1126/science.abg2530</a>.","apa":"Bluvstein, D., Omran, A., Levine, H., Keesling, A., Semeghini, G., Ebadi, S., … Lukin, M. D. (2021). Controlling quantum many-body dynamics in driven Rydberg atom arrays. <i>Science</i>. AAAS. <a href=\"https://doi.org/10.1126/science.abg2530\">https://doi.org/10.1126/science.abg2530</a>","chicago":"Bluvstein, D., A. Omran, H. Levine, A. Keesling, G. Semeghini, S. Ebadi, T. T. Wang, et al. “Controlling Quantum Many-Body Dynamics in Driven Rydberg Atom Arrays.” <i>Science</i>. AAAS, 2021. <a href=\"https://doi.org/10.1126/science.abg2530\">https://doi.org/10.1126/science.abg2530</a>.","ista":"Bluvstein D, Omran A, Levine H, Keesling A, Semeghini G, Ebadi S, Wang TT, Michailidis A, Maskara N, Ho WW, Choi S, Serbyn M, Greiner M, Vuletić V, Lukin MD. 2021. Controlling quantum many-body dynamics in driven Rydberg atom arrays. Science. 371(6536), 1355–1359."},"issue":"6536","language":[{"iso":"eng"}],"oa":1,"type":"journal_article","_id":"9618","date_updated":"2023-08-10T13:57:07Z","publisher":"AAAS","article_processing_charge":"No","doi":"10.1126/science.abg2530","quality_controlled":"1","ddc":["539"],"page":"1355-1359","keyword":["Multidisciplinary"],"external_id":{"pmid":["33632894"],"arxiv":["2012.12276"],"isi":["000636043400048"]},"year":"2021","isi":1,"acknowledgement":"We thank many members of the Harvard AMO community, particularly E. Urbach, S. Dakoulas, and J. Doyle for their efforts enabling safe and productive operation of our laboratories during 2020. We thank D. Abanin, I. Cong, F. Machado, H. Pichler, N. Yao, B. Ye, and H. Zhou for stimulating discussions. Funding: We acknowledge financial support from the Center for Ultracold Atoms, the National Science Foundation, the Vannevar Bush Faculty Fellowship, the U.S. Department of Energy (LBNL QSA Center and grant no. DE-SC0021013), the Office of Naval Research, the Army Research Office MURI, the DARPA DRINQS program (grant no. D18AC00033), and the DARPA ONISQ program (grant no. W911NF2010021). The authors acknowledge support from the NSF Graduate Research Fellowship Program (grant DGE1745303) and The Fannie and John Hertz Foundation (D.B.); a National Defense Science and Engineering Graduate (NDSEG) fellowship (H.L.); a fellowship from the Max Planck/Harvard Research Center for Quantum Optics (G.S.); Gordon College (T.T.W.); the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation program (grant agreement no. 850899) (A.A.M. and M.S.); a Department of Energy Computational Science Graduate Fellowship under award number DE-SC0021110 (N.M.); the Moore Foundation’s EPiQS Initiative grant no. GBMF4306, the NUS Development grant AY2019/2020, and the Stanford Institute of Theoretical Physics (W.W.H.); and the Miller Institute for Basic Research in Science (S.C.). Author contributions: D.B., A.O., H.L., A.K., G.S., S.E., and T.T.W. contributed to the building of the experimental setup, performed the measurements, and analyzed the data. A.A.M., N.M., W.W.H., S.C., and M.S. performed theoretical analysis. All work was supervised by M.G., V.V., and M.D.L. All authors discussed the results and contributed to the manuscript. Competing interests: M.G., V.V., and M.D.L. are co-founders and shareholders of QuEra Computing. A.O. is a shareholder of QuEra Computing. Data and materials availability: All data needed to evaluate the conclusions in the paper are present in the paper and the supplementary materials.","date_published":"2021-03-26T00:00:00Z","ec_funded":1,"pmid":1,"publication":"Science","status":"public","project":[{"grant_number":"850899","name":"Non-Ergodic Quantum Matter: Universality, Dynamics and Control","call_identifier":"H2020","_id":"23841C26-32DE-11EA-91FC-C7463DDC885E"}]}]