[{"publisher":"Springer Nature","article_type":"original","quality_controlled":"1","file_date_updated":"2023-09-05T08:45:49Z","department":[{"_id":"MiLe"}],"article_processing_charge":"Yes (via OA deal)","date_created":"2023-08-28T12:36:49Z","publication_status":"published","intvolume":"         6","title":"Emergence of a Bose polaron in a small ring threaded by the Aharonov-Bohm flux","scopus_import":"1","_id":"14246","author":[{"full_name":"Brauneis, Fabian","first_name":"Fabian","last_name":"Brauneis"},{"last_name":"Ghazaryan","first_name":"Areg","full_name":"Ghazaryan, Areg","orcid":"0000-0001-9666-3543","id":"4AF46FD6-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Hans-Werner","last_name":"Hammer","full_name":"Hammer, Hans-Werner"},{"full_name":"Volosniev, Artem","orcid":"0000-0003-0393-5525","last_name":"Volosniev","first_name":"Artem","id":"37D278BC-F248-11E8-B48F-1D18A9856A87"}],"acknowledgement":"Open Access funding enabled and organized by Projekt DEAL.\r\nWe would like to thank Jonas Jager for sharing his data with us in the early stages of this project. We thank Joachim Brand and Ray Yang for sharing with us data from Yang et al.46. This work has received funding from the DFG Project no. 413495248 [VO 2437/1-1] (F.B., H.-W.H., A.G.V.). We acknowledge support from the Deutsche Forschungsgemeinschaft (DFG - German Research Foundation) and the Open Access Publishing Fund of the Technical University of Darmstadt.","volume":6,"ddc":["530"],"day":"22","doi":"10.1038/s42005-023-01281-2","arxiv":1,"abstract":[{"lang":"eng","text":"The model of a ring threaded by the Aharonov-Bohm flux underlies our understanding of a coupling between gauge potentials and matter. The typical formulation of the model is based upon a single particle picture, and should be extended when interactions with other particles become relevant. Here, we illustrate such an extension for a particle in an Aharonov-Bohm ring subject to interactions with a weakly interacting Bose gas. We show that the ground state of the system can be described using the Bose-polaron concept—a particle dressed by interactions with a bosonic environment. We connect the energy spectrum to the effective mass of the polaron, and demonstrate how to change currents in the system by tuning boson-particle interactions. Our results suggest the Aharonov-Bohm ring as a platform for studying coherence and few- to many-body crossover of quasi-particles that arise from an impurity immersed in a medium."}],"citation":{"ista":"Brauneis F, Ghazaryan A, Hammer H-W, Volosniev A. 2023. Emergence of a Bose polaron in a small ring threaded by the Aharonov-Bohm flux. Communications Physics. 6, 224.","mla":"Brauneis, Fabian, et al. “Emergence of a Bose Polaron in a Small Ring Threaded by the Aharonov-Bohm Flux.” <i>Communications Physics</i>, vol. 6, 224, Springer Nature, 2023, doi:<a href=\"https://doi.org/10.1038/s42005-023-01281-2\">10.1038/s42005-023-01281-2</a>.","short":"F. Brauneis, A. Ghazaryan, H.-W. Hammer, A. Volosniev, Communications Physics 6 (2023).","chicago":"Brauneis, Fabian, Areg Ghazaryan, Hans-Werner Hammer, and Artem Volosniev. “Emergence of a Bose Polaron in a Small Ring Threaded by the Aharonov-Bohm Flux.” <i>Communications Physics</i>. Springer Nature, 2023. <a href=\"https://doi.org/10.1038/s42005-023-01281-2\">https://doi.org/10.1038/s42005-023-01281-2</a>.","ieee":"F. Brauneis, A. Ghazaryan, H.-W. Hammer, and A. Volosniev, “Emergence of a Bose polaron in a small ring threaded by the Aharonov-Bohm flux,” <i>Communications Physics</i>, vol. 6. Springer Nature, 2023.","apa":"Brauneis, F., Ghazaryan, A., Hammer, H.-W., &#38; Volosniev, A. (2023). Emergence of a Bose polaron in a small ring threaded by the Aharonov-Bohm flux. <i>Communications Physics</i>. Springer Nature. <a href=\"https://doi.org/10.1038/s42005-023-01281-2\">https://doi.org/10.1038/s42005-023-01281-2</a>","ama":"Brauneis F, Ghazaryan A, Hammer H-W, Volosniev A. Emergence of a Bose polaron in a small ring threaded by the Aharonov-Bohm flux. <i>Communications Physics</i>. 2023;6. doi:<a href=\"https://doi.org/10.1038/s42005-023-01281-2\">10.1038/s42005-023-01281-2</a>"},"year":"2023","date_updated":"2023-12-13T12:21:09Z","external_id":{"isi":["001052577500002"],"arxiv":["2301.10488"]},"isi":1,"keyword":["General Physics and Astronomy"],"language":[{"iso":"eng"}],"oa_version":"Published Version","article_number":"224","month":"08","has_accepted_license":"1","publication":"Communications Physics","file":[{"date_updated":"2023-09-05T08:45:49Z","content_type":"application/pdf","file_name":"2023_CommPhysics_Brauneis.pdf","date_created":"2023-09-05T08:45:49Z","file_size":855960,"checksum":"6edfc59b0ee7dc406d0968b05236e83d","file_id":"14268","creator":"dernst","access_level":"open_access","success":1,"relation":"main_file"}],"status":"public","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publication_identifier":{"issn":["2399-3650"]},"oa":1,"tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"type":"journal_article","date_published":"2023-08-22T00:00:00Z"},{"doi":"10.1103/physrevresearch.5.013029","day":"20","abstract":[{"text":"Brownian motion of a mobile impurity in a bath is affected by spin-orbit coupling (SOC). Here, we discuss a Caldeira-Leggett-type model that can be used to propose and interpret quantum simulators of this problem in cold Bose gases. First, we derive a master equation that describes the model and explore it in a one-dimensional (1D) setting. To validate the standard assumptions needed for our derivation, we analyze available experimental data without SOC; as a byproduct, this analysis suggests that the quench dynamics of the impurity is beyond the 1D Bose-polaron approach at temperatures currently accessible in a cold-atom laboratory—motion of the impurity is mainly driven by dissipation. For systems with SOC, we demonstrate that 1D spin-orbit coupling can be gauged out even in the presence of dissipation—the information about SOC is incorporated in the initial conditions. Observables sensitive to this information (such as spin densities) can be used to study formation of steady spin polarization domains during quench dynamics.","lang":"eng"}],"date_updated":"2023-02-20T07:02:00Z","citation":{"ama":"Ghazaryan A, Cappellaro A, Lemeshko M, Volosniev A. Dissipative dynamics of an impurity with spin-orbit coupling. <i>Physical Review Research</i>. 2023;5(1). doi:<a href=\"https://doi.org/10.1103/physrevresearch.5.013029\">10.1103/physrevresearch.5.013029</a>","apa":"Ghazaryan, A., Cappellaro, A., Lemeshko, M., &#38; Volosniev, A. (2023). Dissipative dynamics of an impurity with spin-orbit coupling. <i>Physical Review Research</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physrevresearch.5.013029\">https://doi.org/10.1103/physrevresearch.5.013029</a>","chicago":"Ghazaryan, Areg, Alberto Cappellaro, Mikhail Lemeshko, and Artem Volosniev. “Dissipative Dynamics of an Impurity with Spin-Orbit Coupling.” <i>Physical Review Research</i>. American Physical Society, 2023. <a href=\"https://doi.org/10.1103/physrevresearch.5.013029\">https://doi.org/10.1103/physrevresearch.5.013029</a>.","ieee":"A. Ghazaryan, A. Cappellaro, M. Lemeshko, and A. Volosniev, “Dissipative dynamics of an impurity with spin-orbit coupling,” <i>Physical Review Research</i>, vol. 5, no. 1. American Physical Society, 2023.","short":"A. Ghazaryan, A. Cappellaro, M. Lemeshko, A. Volosniev, Physical Review Research 5 (2023).","mla":"Ghazaryan, Areg, et al. “Dissipative Dynamics of an Impurity with Spin-Orbit Coupling.” <i>Physical Review Research</i>, vol. 5, no. 1, 013029, American Physical Society, 2023, doi:<a href=\"https://doi.org/10.1103/physrevresearch.5.013029\">10.1103/physrevresearch.5.013029</a>.","ista":"Ghazaryan A, Cappellaro A, Lemeshko M, Volosniev A. 2023. Dissipative dynamics of an impurity with spin-orbit coupling. Physical Review Research. 5(1), 013029."},"year":"2023","volume":5,"acknowledgement":"We thank Rafael Barfknecht for help at the initial stages of this project; Fabian Brauneis for useful discussions; Miguel A. Garcia-March, Georgios Koutentakis, and Simeon Mistakidis\r\nfor comments on the paper. M.L. acknowledges support by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON).","ddc":["530"],"publication_status":"published","date_created":"2023-02-10T09:02:26Z","article_processing_charge":"No","department":[{"_id":"MiLe"}],"title":"Dissipative dynamics of an impurity with spin-orbit coupling","intvolume":"         5","_id":"12534","scopus_import":"1","author":[{"last_name":"Ghazaryan","first_name":"Areg","full_name":"Ghazaryan, Areg","orcid":"0000-0001-9666-3543","id":"4AF46FD6-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Cappellaro, Alberto","orcid":"0000-0001-6110-2359","last_name":"Cappellaro","first_name":"Alberto","id":"9d13b3cb-30a2-11eb-80dc-f772505e8660"},{"id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-6990-7802","full_name":"Lemeshko, Mikhail","first_name":"Mikhail","last_name":"Lemeshko"},{"full_name":"Volosniev, Artem","orcid":"0000-0003-0393-5525","last_name":"Volosniev","first_name":"Artem","id":"37D278BC-F248-11E8-B48F-1D18A9856A87"}],"issue":"1","publisher":"American Physical Society","article_type":"original","quality_controlled":"1","ec_funded":1,"file_date_updated":"2023-02-13T10:38:10Z","publication_identifier":{"issn":["2643-1564"]},"oa":1,"tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"date_published":"2023-01-20T00:00:00Z","type":"journal_article","file":[{"relation":"main_file","success":1,"access_level":"open_access","creator":"dernst","file_id":"12546","file_size":865150,"checksum":"6068b62874c0099628a108bb9c5c6bd2","date_created":"2023-02-13T10:38:10Z","content_type":"application/pdf","file_name":"2023_PhysicalReviewResearch_Ghazaryan.pdf","date_updated":"2023-02-13T10:38:10Z"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","status":"public","oa_version":"Published Version","project":[{"call_identifier":"H2020","_id":"2688CF98-B435-11E9-9278-68D0E5697425","name":"Angulon: physics and applications of a new quasiparticle","grant_number":"801770"}],"month":"01","article_number":"013029","publication":"Physical Review Research","has_accepted_license":"1","language":[{"iso":"eng"}]},{"publication":"Physical Review Letters","month":"03","article_number":"106901","oa_version":"Preprint","language":[{"iso":"eng"}],"keyword":["General Physics and Astronomy"],"date_published":"2023-03-10T00:00:00Z","type":"journal_article","oa":1,"publication_identifier":{"issn":["0031-9007"],"eissn":["1079-7114"]},"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","status":"public","main_file_link":[{"url":"https://doi.org/10.48550/arXiv.2203.09443","open_access":"1"}],"author":[{"id":"37D278BC-F248-11E8-B48F-1D18A9856A87","first_name":"Artem","last_name":"Volosniev","orcid":"0000-0003-0393-5525","full_name":"Volosniev, Artem"},{"full_name":"Shiva Kumar, Abhishek","last_name":"Shiva Kumar","first_name":"Abhishek","id":"5e9a6931-eb97-11eb-a6c2-e96f7058d77a"},{"id":"40D8A3E6-F248-11E8-B48F-1D18A9856A87","full_name":"Lorenc, Dusan","last_name":"Lorenc","first_name":"Dusan"},{"full_name":"Ashourishokri, Younes","last_name":"Ashourishokri","first_name":"Younes","id":"e32c111f-f6e0-11ea-865d-eb955baea334"},{"full_name":"Zhumekenov, Ayan A.","last_name":"Zhumekenov","first_name":"Ayan A."},{"last_name":"Bakr","first_name":"Osman M.","full_name":"Bakr, Osman M."},{"id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","first_name":"Mikhail","last_name":"Lemeshko","orcid":"0000-0002-6990-7802","full_name":"Lemeshko, Mikhail"},{"first_name":"Zhanybek","last_name":"Alpichshev","orcid":"0000-0002-7183-5203","full_name":"Alpichshev, Zhanybek","id":"45E67A2A-F248-11E8-B48F-1D18A9856A87"}],"issue":"10","_id":"12723","scopus_import":"1","title":"Spin-electric coupling in lead halide perovskites","intvolume":"       130","publication_status":"published","date_created":"2023-03-14T13:11:59Z","department":[{"_id":"GradSch"},{"_id":"ZhAl"},{"_id":"MiLe"}],"article_processing_charge":"No","quality_controlled":"1","article_type":"original","publisher":"American Physical Society","isi":1,"external_id":{"arxiv":["2203.09443"],"isi":["000982435900002"]},"date_updated":"2023-08-01T13:39:04Z","citation":{"ieee":"A. Volosniev <i>et al.</i>, “Spin-electric coupling in lead halide perovskites,” <i>Physical Review Letters</i>, vol. 130, no. 10. American Physical Society, 2023.","chicago":"Volosniev, Artem, Abhishek Shiva Kumar, Dusan Lorenc, Younes Ashourishokri, Ayan A. Zhumekenov, Osman M. Bakr, Mikhail Lemeshko, and Zhanybek Alpichshev. “Spin-Electric Coupling in Lead Halide Perovskites.” <i>Physical Review Letters</i>. American Physical Society, 2023. <a href=\"https://doi.org/10.1103/physrevlett.130.106901\">https://doi.org/10.1103/physrevlett.130.106901</a>.","ama":"Volosniev A, Shiva Kumar A, Lorenc D, et al. Spin-electric coupling in lead halide perovskites. <i>Physical Review Letters</i>. 2023;130(10). doi:<a href=\"https://doi.org/10.1103/physrevlett.130.106901\">10.1103/physrevlett.130.106901</a>","apa":"Volosniev, A., Shiva Kumar, A., Lorenc, D., Ashourishokri, Y., Zhumekenov, A. A., Bakr, O. M., … Alpichshev, Z. (2023). Spin-electric coupling in lead halide perovskites. <i>Physical Review Letters</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physrevlett.130.106901\">https://doi.org/10.1103/physrevlett.130.106901</a>","ista":"Volosniev A, Shiva Kumar A, Lorenc D, Ashourishokri Y, Zhumekenov AA, Bakr OM, Lemeshko M, Alpichshev Z. 2023. Spin-electric coupling in lead halide perovskites. Physical Review Letters. 130(10), 106901.","short":"A. Volosniev, A. Shiva Kumar, D. Lorenc, Y. Ashourishokri, A.A. Zhumekenov, O.M. Bakr, M. Lemeshko, Z. Alpichshev, Physical Review Letters 130 (2023).","mla":"Volosniev, Artem, et al. “Spin-Electric Coupling in Lead Halide Perovskites.” <i>Physical Review Letters</i>, vol. 130, no. 10, 106901, American Physical Society, 2023, doi:<a href=\"https://doi.org/10.1103/physrevlett.130.106901\">10.1103/physrevlett.130.106901</a>."},"year":"2023","abstract":[{"lang":"eng","text":"Lead halide perovskites enjoy a number of remarkable optoelectronic properties. To explain their origin, it is necessary to study how electromagnetic fields interact with these systems. We address this problem here by studying two classical quantities: Faraday rotation and the complex refractive index in a paradigmatic perovskite CH3NH3PbBr3 in a broad wavelength range. We find that the minimal coupling of electromagnetic fields to the k⋅p Hamiltonian is insufficient to describe the observed data even on the qualitative level. To amend this, we demonstrate that there exists a relevant atomic-level coupling between electromagnetic fields and the spin degree of freedom. This spin-electric coupling allows for quantitative description of a number of previous as well as present experimental data. In particular, we use it here to show that the Faraday effect in lead halide perovskites is dominated by the Zeeman splitting of the energy levels and has a substantial beyond-Becquerel contribution. Finally, we present general symmetry-based phenomenological arguments that in the low-energy limit our effective model includes all basis coupling terms to the electromagnetic field in the linear order."}],"arxiv":1,"doi":"10.1103/physrevlett.130.106901","day":"10","volume":130},{"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","status":"public","main_file_link":[{"url":"https://doi.org/10.48550/arXiv.2204.04022","open_access":"1"}],"date_published":"2023-03-15T00:00:00Z","type":"journal_article","oa":1,"publication_identifier":{"eissn":["2469-9969"],"issn":["2469-9950"]},"language":[{"iso":"eng"}],"publication":"Physical Review B","month":"03","article_number":"125201","oa_version":"Preprint","volume":107,"isi":1,"external_id":{"arxiv":["2204.04022"],"isi":["000972602200006"]},"date_updated":"2023-08-01T13:39:47Z","year":"2023","citation":{"mla":"Volosniev, Artem, et al. “Effective Model for Studying Optical Properties of Lead Halide Perovskites.” <i>Physical Review B</i>, vol. 107, no. 12, 125201, American Physical Society, 2023, doi:<a href=\"https://doi.org/10.1103/physrevb.107.125201\">10.1103/physrevb.107.125201</a>.","short":"A. Volosniev, A. Shiva Kumar, D. Lorenc, Y. Ashourishokri, A. Zhumekenov, O.M. Bakr, M. Lemeshko, Z. Alpichshev, Physical Review B 107 (2023).","ista":"Volosniev A, Shiva Kumar A, Lorenc D, Ashourishokri Y, Zhumekenov A, Bakr OM, Lemeshko M, Alpichshev Z. 2023. Effective model for studying optical properties of lead halide perovskites. Physical Review B. 107(12), 125201.","ama":"Volosniev A, Shiva Kumar A, Lorenc D, et al. Effective model for studying optical properties of lead halide perovskites. <i>Physical Review B</i>. 2023;107(12). doi:<a href=\"https://doi.org/10.1103/physrevb.107.125201\">10.1103/physrevb.107.125201</a>","apa":"Volosniev, A., Shiva Kumar, A., Lorenc, D., Ashourishokri, Y., Zhumekenov, A., Bakr, O. M., … Alpichshev, Z. (2023). Effective model for studying optical properties of lead halide perovskites. <i>Physical Review B</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physrevb.107.125201\">https://doi.org/10.1103/physrevb.107.125201</a>","chicago":"Volosniev, Artem, Abhishek Shiva Kumar, Dusan Lorenc, Younes Ashourishokri, Ayan Zhumekenov, Osman M. Bakr, Mikhail Lemeshko, and Zhanybek Alpichshev. “Effective Model for Studying Optical Properties of Lead Halide Perovskites.” <i>Physical Review B</i>. American Physical Society, 2023. <a href=\"https://doi.org/10.1103/physrevb.107.125201\">https://doi.org/10.1103/physrevb.107.125201</a>.","ieee":"A. Volosniev <i>et al.</i>, “Effective model for studying optical properties of lead halide perovskites,” <i>Physical Review B</i>, vol. 107, no. 12. American Physical Society, 2023."},"abstract":[{"text":"We use general symmetry-based arguments to construct an effective model suitable for studying optical properties of lead halide perovskites. To build the model, we identify an atomic-level interaction between electromagnetic fields and the spin degree of freedom that should be added to a minimally coupled k⋅p Hamiltonian. As a first application, we study two basic optical characteristics of the material: the Verdet constant and the refractive index. Beyond these linear characteristics of the material, the model is suitable for calculating nonlinear effects such as the third-order optical susceptibility. Analysis of this quantity shows that the geometrical properties of the spin-electric term imply isotropic optical response of the system, and that optical anisotropy of lead halide perovskites is a manifestation of hopping of charge carriers. To illustrate this, we discuss third-harmonic generation.","lang":"eng"}],"arxiv":1,"doi":"10.1103/physrevb.107.125201","day":"15","quality_controlled":"1","article_type":"original","publisher":"American Physical Society","author":[{"id":"37D278BC-F248-11E8-B48F-1D18A9856A87","first_name":"Artem","last_name":"Volosniev","orcid":"0000-0003-0393-5525","full_name":"Volosniev, Artem"},{"id":"5e9a6931-eb97-11eb-a6c2-e96f7058d77a","full_name":"Shiva Kumar, Abhishek","first_name":"Abhishek","last_name":"Shiva Kumar"},{"full_name":"Lorenc, Dusan","first_name":"Dusan","last_name":"Lorenc","id":"40D8A3E6-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Younes","last_name":"Ashourishokri","full_name":"Ashourishokri, Younes","id":"e32c111f-f6e0-11ea-865d-eb955baea334"},{"last_name":"Zhumekenov","first_name":"Ayan","full_name":"Zhumekenov, Ayan"},{"first_name":"Osman M.","last_name":"Bakr","full_name":"Bakr, Osman M."},{"id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","last_name":"Lemeshko","first_name":"Mikhail","full_name":"Lemeshko, Mikhail","orcid":"0000-0002-6990-7802"},{"last_name":"Alpichshev","first_name":"Zhanybek","full_name":"Alpichshev, Zhanybek","orcid":"0000-0002-7183-5203","id":"45E67A2A-F248-11E8-B48F-1D18A9856A87"}],"issue":"12","_id":"12724","scopus_import":"1","title":"Effective model for studying optical properties of lead halide perovskites","intvolume":"       107","publication_status":"published","article_processing_charge":"No","department":[{"_id":"GradSch"},{"_id":"ZhAl"},{"_id":"MiLe"}],"date_created":"2023-03-14T13:13:05Z"},{"quality_controlled":"1","ec_funded":1,"article_type":"original","publisher":"American Physical Society","issue":"10","author":[{"id":"D7C012AE-D7ED-11E9-95E8-1EC5E5697425","full_name":"Karle, Volker","first_name":"Volker","last_name":"Karle"},{"first_name":"Areg","last_name":"Ghazaryan","orcid":"0000-0001-9666-3543","full_name":"Ghazaryan, Areg","id":"4AF46FD6-F248-11E8-B48F-1D18A9856A87"},{"id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","first_name":"Mikhail","last_name":"Lemeshko","orcid":"0000-0002-6990-7802","full_name":"Lemeshko, Mikhail"}],"scopus_import":"1","_id":"12788","intvolume":"       130","title":"Topological charges of periodically kicked molecules","department":[{"_id":"MiLe"}],"date_created":"2023-04-02T22:01:10Z","article_processing_charge":"No","publication_status":"published","volume":130,"acknowledgement":"M. L. acknowledges support by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON).","external_id":{"arxiv":["2206.07067"],"isi":["000957635500003"]},"isi":1,"citation":{"chicago":"Karle, Volker, Areg Ghazaryan, and Mikhail Lemeshko. “Topological Charges of Periodically Kicked Molecules.” <i>Physical Review Letters</i>. American Physical Society, 2023. <a href=\"https://doi.org/10.1103/PhysRevLett.130.103202\">https://doi.org/10.1103/PhysRevLett.130.103202</a>.","ieee":"V. Karle, A. Ghazaryan, and M. Lemeshko, “Topological charges of periodically kicked molecules,” <i>Physical Review Letters</i>, vol. 130, no. 10. American Physical Society, 2023.","apa":"Karle, V., Ghazaryan, A., &#38; Lemeshko, M. (2023). Topological charges of periodically kicked molecules. <i>Physical Review Letters</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevLett.130.103202\">https://doi.org/10.1103/PhysRevLett.130.103202</a>","ama":"Karle V, Ghazaryan A, Lemeshko M. Topological charges of periodically kicked molecules. <i>Physical Review Letters</i>. 2023;130(10). doi:<a href=\"https://doi.org/10.1103/PhysRevLett.130.103202\">10.1103/PhysRevLett.130.103202</a>","ista":"Karle V, Ghazaryan A, Lemeshko M. 2023. Topological charges of periodically kicked molecules. Physical Review Letters. 130(10), 103202.","short":"V. Karle, A. Ghazaryan, M. Lemeshko, Physical Review Letters 130 (2023).","mla":"Karle, Volker, et al. “Topological Charges of Periodically Kicked Molecules.” <i>Physical Review Letters</i>, vol. 130, no. 10, 103202, American Physical Society, 2023, doi:<a href=\"https://doi.org/10.1103/PhysRevLett.130.103202\">10.1103/PhysRevLett.130.103202</a>."},"year":"2023","date_updated":"2023-08-01T14:02:06Z","abstract":[{"text":"We show that the simplest of existing molecules—closed-shell diatomics not interacting with one another—host topological charges when driven by periodic far-off-resonant laser pulses. A periodically kicked molecular rotor can be mapped onto a “crystalline” lattice in angular momentum space. This allows us to define quasimomenta and the band structure in the Floquet representation, by analogy with the Bloch waves of solid-state physics. Applying laser pulses spaced by 1/3 of the molecular rotational period creates a lattice with three atoms per unit cell with staggered hopping. Within the synthetic dimension of the laser strength, we discover Dirac cones with topological charges. These Dirac cones, topologically protected by reflection and time-reversal symmetry, are reminiscent of (although not equivalent to) that seen in graphene. They—and the corresponding edge states—are broadly tunable by adjusting the laser strength and can be observed in present-day experiments by measuring molecular alignment and populations of rotational levels. This paves the way to study controllable topological physics in gas-phase experiments with small molecules as well as to classify dynamical molecular states by their topological invariants.","lang":"eng"}],"day":"10","doi":"10.1103/PhysRevLett.130.103202","arxiv":1,"language":[{"iso":"eng"}],"publication":"Physical Review Letters","article_number":"103202","month":"03","project":[{"name":"Angulon: physics and applications of a new quasiparticle","grant_number":"801770","call_identifier":"H2020","_id":"2688CF98-B435-11E9-9278-68D0E5697425"}],"oa_version":"Preprint","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","status":"public","related_material":{"link":[{"url":"https://ista.ac.at/en/news/topology-of-rotating-molecules/","description":"News on the ISTA website","relation":"press_release"}]},"main_file_link":[{"open_access":"1","url":"https://doi.org/10.48550/arXiv.2206.07067"}],"type":"journal_article","date_published":"2023-03-10T00:00:00Z","oa":1,"publication_identifier":{"eissn":["1079-7114"],"issn":["0031-9007"]}},{"language":[{"iso":"eng"}],"month":"03","article_number":"104502","oa_version":"Preprint","publication":"Physical Review B","related_material":{"link":[{"description":"News on the ISTA website","relation":"press_release","url":"https://ista.ac.at/en/news/reaching-superconductivity-layer-by-layer/"}]},"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","status":"public","main_file_link":[{"open_access":"1","url":"https://doi.org/10.48550/arXiv.2211.02492"}],"oa":1,"publication_identifier":{"issn":["2469-9950"],"eissn":["2469-9969"]},"date_published":"2023-03-01T00:00:00Z","type":"journal_article","article_type":"original","publisher":"American Physical Society","quality_controlled":"1","title":"Multilayer graphenes as a platform for interaction-driven physics and topological superconductivity","intvolume":"       107","publication_status":"published","department":[{"_id":"MaSe"},{"_id":"MiLe"}],"date_created":"2023-04-02T22:01:10Z","article_processing_charge":"No","author":[{"id":"4AF46FD6-F248-11E8-B48F-1D18A9856A87","first_name":"Areg","last_name":"Ghazaryan","orcid":"0000-0001-9666-3543","full_name":"Ghazaryan, Areg"},{"full_name":"Holder, Tobias","last_name":"Holder","first_name":"Tobias"},{"last_name":"Berg","first_name":"Erez","full_name":"Berg, Erez"},{"last_name":"Serbyn","first_name":"Maksym","full_name":"Serbyn, Maksym","orcid":"0000-0002-2399-5827","id":"47809E7E-F248-11E8-B48F-1D18A9856A87"}],"issue":"10","_id":"12790","scopus_import":"1","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.","volume":107,"abstract":[{"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.","lang":"eng"}],"doi":"10.1103/PhysRevB.107.104502","arxiv":1,"day":"01","isi":1,"external_id":{"arxiv":["2211.02492"],"isi":["000945526400003"]},"date_updated":"2023-08-01T13:59:29Z","year":"2023","citation":{"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.","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>.","short":"A. Ghazaryan, T. Holder, E. Berg, M. Serbyn, Physical Review B 107 (2023).","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>.","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.","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>","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>"}},{"date_published":"2023-04-07T00:00:00Z","type":"journal_article","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"oa":1,"publication_identifier":{"eissn":["1089-7690"]},"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","status":"public","file":[{"access_level":"open_access","relation":"main_file","success":1,"creator":"dernst","file_id":"12841","checksum":"8d801babea4df48e08895c76571bb19e","file_size":7388057,"date_created":"2023-04-17T07:28:38Z","file_name":"2023_JourChemicalPhysics_Zeng.pdf","content_type":"application/pdf","date_updated":"2023-04-17T07:28:38Z"}],"publication":"The Journal of Chemical Physics","has_accepted_license":"1","month":"04","article_number":"134301","oa_version":"Published Version","project":[{"name":"Angulon: physics and applications of a new quasiparticle","grant_number":"801770","call_identifier":"H2020","_id":"2688CF98-B435-11E9-9278-68D0E5697425"}],"language":[{"iso":"eng"}],"isi":1,"external_id":{"arxiv":["2211.08070"],"isi":["000970038800001"]},"date_updated":"2023-08-01T14:08:47Z","citation":{"ama":"Zeng Z, Yakaboylu E, Lemeshko M, Shi T, Schmidt R. Variational theory of angulons and their rotational spectroscopy. <i>The Journal of Chemical Physics</i>. 2023;158(13). doi:<a href=\"https://doi.org/10.1063/5.0135893\">10.1063/5.0135893</a>","apa":"Zeng, Z., Yakaboylu, E., Lemeshko, M., Shi, T., &#38; Schmidt, R. (2023). Variational theory of angulons and their rotational spectroscopy. <i>The Journal of Chemical Physics</i>. American Institute of Physics. <a href=\"https://doi.org/10.1063/5.0135893\">https://doi.org/10.1063/5.0135893</a>","ieee":"Z. Zeng, E. Yakaboylu, M. Lemeshko, T. Shi, and R. Schmidt, “Variational theory of angulons and their rotational spectroscopy,” <i>The Journal of Chemical Physics</i>, vol. 158, no. 13. American Institute of Physics, 2023.","chicago":"Zeng, Zhongda, Enderalp Yakaboylu, Mikhail Lemeshko, Tao Shi, and Richard Schmidt. “Variational Theory of Angulons and Their Rotational Spectroscopy.” <i>The Journal of Chemical Physics</i>. American Institute of Physics, 2023. <a href=\"https://doi.org/10.1063/5.0135893\">https://doi.org/10.1063/5.0135893</a>.","short":"Z. Zeng, E. Yakaboylu, M. Lemeshko, T. Shi, R. Schmidt, The Journal of Chemical Physics 158 (2023).","mla":"Zeng, Zhongda, et al. “Variational Theory of Angulons and Their Rotational Spectroscopy.” <i>The Journal of Chemical Physics</i>, vol. 158, no. 13, 134301, American Institute of Physics, 2023, doi:<a href=\"https://doi.org/10.1063/5.0135893\">10.1063/5.0135893</a>.","ista":"Zeng Z, Yakaboylu E, Lemeshko M, Shi T, Schmidt R. 2023. Variational theory of angulons and their rotational spectroscopy. The Journal of Chemical Physics. 158(13), 134301."},"year":"2023","abstract":[{"lang":"eng","text":"The angulon, a quasiparticle formed by a quantum rotor dressed by the excitations of a many-body bath, can be used to describe an impurity rotating in a fluid or solid environment. Here, we propose a coherent state ansatz in the co-rotating frame, which provides a comprehensive theoretical description of angulons. We reveal the quasiparticle properties, such as energies, quasiparticle weights, and spectral functions, and show that our ansatz yields a persistent decrease in the impurity’s rotational constant due to many-body dressing, which is consistent with experimental observations. From our study, a picture of the angulon emerges as an effective spin interacting with a magnetic field that is self-consistently generated by the molecule’s rotation. Moreover, we discuss rotational spectroscopy, which focuses on the response of rotating molecules to a laser perturbation in the linear response regime. Importantly, we take into account initial-state interactions that have been neglected in prior studies and reveal their impact on the excitation spectrum. To examine the angulon instability regime, we use a single-excitation ansatz and obtain results consistent with experiments, in which a broadening of spectral lines is observed while phonon wings remain highly suppressed due to initial-state interactions."}],"doi":"10.1063/5.0135893","arxiv":1,"day":"07","ddc":["530"],"volume":158,"acknowledgement":"We thank Ignacio Cirac, Christian Schmauder, and Henrik Stapelfeldt for their valuable discussions. We acknowledge support by the Max Planck Society and the Deutsche Forschungsgemeinschaft under Germany’s Excellence Strategy EXC 2181/1—390900948 (the Heidelberg STRUCTURES Excellence Cluster). M.L. acknowledges support from the European Research Council (ERC) Starting Grant No. 801770 (ANGULON). T.S. is supported by the National Key Research and Development Program of China (Grant No. 2017YFA0718304) and the National Natural Science Foundation of China (Grant Nos. 11974363, 12135018, and 12047503).","author":[{"full_name":"Zeng, Zhongda","first_name":"Zhongda","last_name":"Zeng"},{"full_name":"Yakaboylu, Enderalp","orcid":"0000-0001-5973-0874","last_name":"Yakaboylu","first_name":"Enderalp","id":"38CB71F6-F248-11E8-B48F-1D18A9856A87"},{"id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","full_name":"Lemeshko, Mikhail","orcid":"0000-0002-6990-7802","last_name":"Lemeshko","first_name":"Mikhail"},{"last_name":"Shi","first_name":"Tao","full_name":"Shi, Tao"},{"last_name":"Schmidt","first_name":"Richard","full_name":"Schmidt, Richard"}],"issue":"13","_id":"12831","scopus_import":"1","title":"Variational theory of angulons and their rotational spectroscopy","intvolume":"       158","publication_status":"published","article_processing_charge":"No","department":[{"_id":"MiLe"}],"date_created":"2023-04-16T22:01:07Z","file_date_updated":"2023-04-17T07:28:38Z","ec_funded":1,"quality_controlled":"1","article_type":"original","publisher":"American Institute of Physics"},{"main_file_link":[{"url":"https://doi.org/10.48550/arXiv.2211.08755","open_access":"1"}],"status":"public","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publication_identifier":{"eissn":["2195-1071"]},"oa":1,"type":"journal_article","date_published":"2023-07-04T00:00:00Z","language":[{"iso":"eng"}],"oa_version":"Preprint","article_number":"2202631","month":"07","publication":"Advanced Optical Materials","acknowledgement":"The authors acknowledge insightful discussions with Prof. Wang Yao and graphics by Rezlind Bushati. M.K. and N.Y. acknowledge support from NSF grants NSF DMR-1709996 and NSF OMA 1936276. S.G. was supported by the Army Research Office Multidisciplinary University Research Initiative program (W911NF-17-1-0312) and V.M.M. by the Army Research Office grant (W911NF-22-1-0091). K.M acknowledges the SPARC program that supported his collaboration with the CUNY team. The authors acknowledge the Nanofabrication facility at the CUNY Advanced Science Research Center where the cavity devices were fabricated.","volume":11,"day":"04","doi":"10.1002/adom.202202631","arxiv":1,"abstract":[{"lang":"eng","text":"Coherent control and manipulation of quantum degrees of freedom such as spins forms the basis of emerging quantum technologies. In this context, the robust valley degree of freedom and the associated valley pseudospin found in two-dimensional transition metal dichalcogenides is a highly attractive platform. Valley polarization and coherent superposition of valley states have been observed in these systems even up to room temperature. Control of valley coherence is an important building block for the implementation of valley qubit. Large magnetic fields or high-power lasers have been used in the past to demonstrate the control (initialization and rotation) of the valley coherent states. Here, the control of layer–valley coherence via strong coupling of valley excitons in bilayer WS2 to microcavity photons is demonstrated by exploiting the pseudomagnetic field arising in optical cavities owing to the transverse electric–transverse magnetic (TE–TM)mode splitting. The use of photonic structures to generate pseudomagnetic fields which can be used to manipulate exciton-polaritons presents an attractive approach to control optical responses without the need for large magnets or high-intensity optical pump powers."}],"citation":{"apa":"Khatoniar, M., Yama, N., Ghazaryan, A., Guddala, S., Ghaemi, P., Majumdar, K., &#38; Menon, V. (2023). Optical manipulation of Layer–Valley coherence via strong exciton–photon coupling in microcavities. <i>Advanced Optical Materials</i>. Wiley. <a href=\"https://doi.org/10.1002/adom.202202631\">https://doi.org/10.1002/adom.202202631</a>","ama":"Khatoniar M, Yama N, Ghazaryan A, et al. Optical manipulation of Layer–Valley coherence via strong exciton–photon coupling in microcavities. <i>Advanced Optical Materials</i>. 2023;11(13). doi:<a href=\"https://doi.org/10.1002/adom.202202631\">10.1002/adom.202202631</a>","ieee":"M. Khatoniar <i>et al.</i>, “Optical manipulation of Layer–Valley coherence via strong exciton–photon coupling in microcavities,” <i>Advanced Optical Materials</i>, vol. 11, no. 13. Wiley, 2023.","chicago":"Khatoniar, Mandeep, Nicholas Yama, Areg Ghazaryan, Sriram Guddala, Pouyan Ghaemi, Kausik Majumdar, and Vinod Menon. “Optical Manipulation of Layer–Valley Coherence via Strong Exciton–Photon Coupling in Microcavities.” <i>Advanced Optical Materials</i>. Wiley, 2023. <a href=\"https://doi.org/10.1002/adom.202202631\">https://doi.org/10.1002/adom.202202631</a>.","mla":"Khatoniar, Mandeep, et al. “Optical Manipulation of Layer–Valley Coherence via Strong Exciton–Photon Coupling in Microcavities.” <i>Advanced Optical Materials</i>, vol. 11, no. 13, 2202631, Wiley, 2023, doi:<a href=\"https://doi.org/10.1002/adom.202202631\">10.1002/adom.202202631</a>.","short":"M. Khatoniar, N. Yama, A. Ghazaryan, S. Guddala, P. Ghaemi, K. Majumdar, V. Menon, Advanced Optical Materials 11 (2023).","ista":"Khatoniar M, Yama N, Ghazaryan A, Guddala S, Ghaemi P, Majumdar K, Menon V. 2023. Optical manipulation of Layer–Valley coherence via strong exciton–photon coupling in microcavities. Advanced Optical Materials. 11(13), 2202631."},"year":"2023","date_updated":"2023-10-04T11:15:17Z","external_id":{"isi":["000963866700001"],"arxiv":["2211.08755"]},"isi":1,"publisher":"Wiley","article_type":"original","quality_controlled":"1","department":[{"_id":"MiLe"}],"article_processing_charge":"No","date_created":"2023-04-16T22:01:09Z","publication_status":"published","intvolume":"        11","title":"Optical manipulation of Layer–Valley coherence via strong exciton–photon coupling in microcavities","scopus_import":"1","_id":"12836","issue":"13","author":[{"first_name":"Mandeep","last_name":"Khatoniar","full_name":"Khatoniar, Mandeep"},{"last_name":"Yama","first_name":"Nicholas","full_name":"Yama, Nicholas"},{"orcid":"0000-0001-9666-3543","full_name":"Ghazaryan, Areg","first_name":"Areg","last_name":"Ghazaryan","id":"4AF46FD6-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Guddala, Sriram","first_name":"Sriram","last_name":"Guddala"},{"full_name":"Ghaemi, Pouyan","last_name":"Ghaemi","first_name":"Pouyan"},{"full_name":"Majumdar, Kausik","last_name":"Majumdar","first_name":"Kausik"},{"full_name":"Menon, Vinod","last_name":"Menon","first_name":"Vinod"}]},{"quality_controlled":"1","ec_funded":1,"publisher":"American Physical Society","article_type":"original","_id":"12914","scopus_import":"1","author":[{"full_name":"Suzuki, Fumika","orcid":"0000-0003-4982-5970","last_name":"Suzuki","first_name":"Fumika","id":"650C99FC-1079-11EA-A3C0-73AE3DDC885E"},{"full_name":"Unruh, William G.","last_name":"Unruh","first_name":"William G."}],"issue":"4","publication_status":"published","article_processing_charge":"No","date_created":"2023-05-07T22:01:03Z","department":[{"_id":"MiLe"}],"title":"Numerical quantum clock simulations for measuring tunneling times","intvolume":"       107","acknowledgement":"We thank W. H. Zurek, N. Sinitsyn, M. O. Scully, M. Arndt, and C. H. Marrows for helpful discussions. F.S. acknowledges support from the Los Alamos National Laboratory LDRD program under Project No. 20230049DR and the Center for Nonlinear Studies. F.S. also thanks the European Union’s Horizon 2020 research and innovation program under the Marie Skłodowska-Curie Grant No. 754411 for support. W.G.U. thanks the Natural Science and Engineering Research Council of Canada, the Hagler Institute of Texas A&M University, the Helmholz Inst HZDR, Germany for support while this work was being done.","volume":107,"date_updated":"2023-08-01T14:33:21Z","year":"2023","citation":{"ista":"Suzuki F, Unruh WG. 2023. Numerical quantum clock simulations for measuring tunneling times. Physical Review A. 107(4), 042216.","mla":"Suzuki, Fumika, and William G. Unruh. “Numerical Quantum Clock Simulations for Measuring Tunneling Times.” <i>Physical Review A</i>, vol. 107, no. 4, 042216, American Physical Society, 2023, doi:<a href=\"https://doi.org/10.1103/PhysRevA.107.042216\">10.1103/PhysRevA.107.042216</a>.","short":"F. Suzuki, W.G. Unruh, Physical Review A 107 (2023).","chicago":"Suzuki, Fumika, and William G. Unruh. “Numerical Quantum Clock Simulations for Measuring Tunneling Times.” <i>Physical Review A</i>. American Physical Society, 2023. <a href=\"https://doi.org/10.1103/PhysRevA.107.042216\">https://doi.org/10.1103/PhysRevA.107.042216</a>.","ieee":"F. Suzuki and W. G. Unruh, “Numerical quantum clock simulations for measuring tunneling times,” <i>Physical Review A</i>, vol. 107, no. 4. American Physical Society, 2023.","apa":"Suzuki, F., &#38; Unruh, W. G. (2023). Numerical quantum clock simulations for measuring tunneling times. <i>Physical Review A</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevA.107.042216\">https://doi.org/10.1103/PhysRevA.107.042216</a>","ama":"Suzuki F, Unruh WG. Numerical quantum clock simulations for measuring tunneling times. <i>Physical Review A</i>. 2023;107(4). doi:<a href=\"https://doi.org/10.1103/PhysRevA.107.042216\">10.1103/PhysRevA.107.042216</a>"},"isi":1,"external_id":{"arxiv":["2207.13130"],"isi":["000975799300006"]},"doi":"10.1103/PhysRevA.107.042216","arxiv":1,"day":"20","abstract":[{"lang":"eng","text":"We numerically study two methods of measuring tunneling times using a quantum clock. In the conventional method using the Larmor clock, we show that the Larmor tunneling time can be shorter for higher tunneling barriers. In the second method, we study the probability of a spin-flip of a particle when it is transmitted through a potential barrier including a spatially rotating field interacting with its spin. According to the adiabatic theorem, the probability depends on the velocity of the particle inside the barrier. It is numerically observed that the probability increases for higher barriers, which is consistent with the result obtained by the Larmor clock. By comparing outcomes for different initial spin states, we suggest that one of the main causes of the apparent decrease in the tunneling time can be the filtering effect occurring at the end of the barrier."}],"language":[{"iso":"eng"}],"publication":"Physical Review A","oa_version":"Preprint","project":[{"_id":"260C2330-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","grant_number":"754411","name":"ISTplus - Postdoctoral Fellowships"}],"month":"04","article_number":"042216","main_file_link":[{"open_access":"1","url":"https://doi.org/10.48550/arXiv.2207.13130"}],"status":"public","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","date_published":"2023-04-20T00:00:00Z","type":"journal_article","publication_identifier":{"issn":["2469-9926"],"eissn":["2469-9934"]},"oa":1},{"month":"02","project":[{"_id":"2564DBCA-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","grant_number":"665385","name":"International IST Doctoral Program"}],"oa_version":"Published Version","has_accepted_license":"1","language":[{"iso":"eng"}],"oa":1,"supervisor":[{"orcid":"0000-0002-6990-7802","full_name":"Lemeshko, Mikhail","first_name":"Mikhail","last_name":"Lemeshko","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87"}],"publication_identifier":{"issn":["2663-337X"]},"type":"dissertation","date_published":"2022-02-21T00:00:00Z","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","related_material":{"record":[{"status":"public","relation":"part_of_dissertation","id":"10762"},{"relation":"part_of_dissertation","id":"7956","status":"public"},{"id":"415","relation":"part_of_dissertation","status":"public"},{"status":"public","id":"8644","relation":"part_of_dissertation"}]},"status":"public","file":[{"checksum":"0fc54ad1eaede879c665ac9b53c93e22","file_size":17668233,"date_created":"2022-02-21T13:58:16Z","content_type":"application/zip","file_name":"Rzadkowski_thesis_final_source.zip","date_updated":"2022-02-22T07:20:12Z","access_level":"closed","relation":"source_file","creator":"wrzadkow","file_id":"10785"},{"success":1,"relation":"main_file","access_level":"open_access","creator":"wrzadkow","file_id":"10786","file_size":13307331,"checksum":"22d2d7af37ca31f6b1730c26cac7bced","date_created":"2022-02-21T14:02:54Z","file_name":"Rzadkowski_thesis_final.pdf","content_type":"application/pdf","date_updated":"2022-02-21T14:02:54Z"}],"alternative_title":["ISTA Thesis"],"title":"Analytic and machine learning approaches to composite quantum impurities","article_processing_charge":"No","department":[{"_id":"GradSch"},{"_id":"MiLe"}],"date_created":"2022-02-16T13:27:37Z","publication_status":"published","author":[{"id":"48C55298-F248-11E8-B48F-1D18A9856A87","first_name":"Wojciech","last_name":"Rzadkowski","orcid":"0000-0002-1106-4419","full_name":"Rzadkowski, Wojciech"}],"_id":"10759","publisher":"Institute of Science and Technology Austria","file_date_updated":"2022-02-22T07:20:12Z","ec_funded":1,"page":"120","abstract":[{"lang":"eng","text":"In this Thesis, I study composite quantum impurities with variational techniques, both inspired by machine learning as well as fully analytic. I supplement this with exploration of other applications of machine learning, in particular artificial neural networks, in many-body physics. In Chapters 3 and 4, I study quasiparticle systems with variational approach. I derive a Hamiltonian describing the angulon quasiparticle in the presence of a magnetic field. I apply analytic variational treatment to this Hamiltonian. Then, I introduce a variational approach for non-additive systems, based on artificial neural networks. I exemplify this approach on the example of the polaron quasiparticle (Fröhlich Hamiltonian). In Chapter 5, I continue using artificial neural networks, albeit in a different setting. I apply artificial neural networks to detect phases from snapshots of two types physical systems. Namely, I study Monte Carlo snapshots of multilayer classical spin models as well as molecular dynamics maps of colloidal systems. The main type of networks that I use here are convolutional neural networks, known for their applicability to image data."}],"day":"21","degree_awarded":"PhD","doi":"10.15479/at:ista:10759","year":"2022","citation":{"ieee":"W. Rzadkowski, “Analytic and machine learning approaches to composite quantum impurities,” Institute of Science and Technology Austria, 2022.","chicago":"Rzadkowski, Wojciech. “Analytic and Machine Learning Approaches to Composite Quantum Impurities.” Institute of Science and Technology Austria, 2022. <a href=\"https://doi.org/10.15479/at:ista:10759\">https://doi.org/10.15479/at:ista:10759</a>.","apa":"Rzadkowski, W. (2022). <i>Analytic and machine learning approaches to composite quantum impurities</i>. Institute of Science and Technology Austria. <a href=\"https://doi.org/10.15479/at:ista:10759\">https://doi.org/10.15479/at:ista:10759</a>","ama":"Rzadkowski W. Analytic and machine learning approaches to composite quantum impurities. 2022. doi:<a href=\"https://doi.org/10.15479/at:ista:10759\">10.15479/at:ista:10759</a>","ista":"Rzadkowski W. 2022. Analytic and machine learning approaches to composite quantum impurities. Institute of Science and Technology Austria.","mla":"Rzadkowski, Wojciech. <i>Analytic and Machine Learning Approaches to Composite Quantum Impurities</i>. Institute of Science and Technology Austria, 2022, doi:<a href=\"https://doi.org/10.15479/at:ista:10759\">10.15479/at:ista:10759</a>.","short":"W. Rzadkowski, Analytic and Machine Learning Approaches to Composite Quantum Impurities, Institute of Science and Technology Austria, 2022."},"date_updated":"2024-08-07T07:16:53Z","ddc":["530"]},{"oa":1,"publication_identifier":{"eissn":["15214095"],"issn":["09359648"]},"type":"journal_article","date_published":"2022-04-01T00:00:00Z","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","status":"public","main_file_link":[{"url":"https://arxiv.org/abs/2108.09998","open_access":"1"}],"article_number":"2106629","month":"04","oa_version":"Preprint","publication":"Advanced Materials","language":[{"iso":"eng"}],"abstract":[{"lang":"eng","text":"A critical overview of the theory of the chirality-induced spin selectivity (CISS) effect, that is, phenomena in which the chirality of molecular species imparts significant spin selectivity to various electron processes, is provided. Based on discussions in a recently held workshop, and further work published since, the status of CISS effects—in electron transmission, electron transport, and chemical reactions—is reviewed. For each, a detailed discussion of the state-of-the-art in theoretical understanding is provided and remaining challenges and research opportunities are identified."}],"day":"01","doi":"10.1002/adma.202106629","arxiv":1,"external_id":{"arxiv":["2108.09998"],"isi":["000753795900001"]},"isi":1,"citation":{"chicago":"Evers, Ferdinand, Amnon Aharony, Nir Bar-Gill, Ora Entin-Wohlman, Per Hedegård, Oded Hod, Pavel Jelinek, et al. “Theory of Chirality Induced Spin Selectivity: Progress and Challenges.” <i>Advanced Materials</i>. Wiley, 2022. <a href=\"https://doi.org/10.1002/adma.202106629\">https://doi.org/10.1002/adma.202106629</a>.","ieee":"F. Evers <i>et al.</i>, “Theory of chirality induced spin selectivity: Progress and challenges,” <i>Advanced Materials</i>, vol. 34, no. 13. Wiley, 2022.","apa":"Evers, F., Aharony, A., Bar-Gill, N., Entin-Wohlman, O., Hedegård, P., Hod, O., … Kronik, L. (2022). Theory of chirality induced spin selectivity: Progress and challenges. <i>Advanced Materials</i>. Wiley. <a href=\"https://doi.org/10.1002/adma.202106629\">https://doi.org/10.1002/adma.202106629</a>","ama":"Evers F, Aharony A, Bar-Gill N, et al. Theory of chirality induced spin selectivity: Progress and challenges. <i>Advanced Materials</i>. 2022;34(13). doi:<a href=\"https://doi.org/10.1002/adma.202106629\">10.1002/adma.202106629</a>","ista":"Evers F, Aharony A, Bar-Gill N, Entin-Wohlman O, Hedegård P, Hod O, Jelinek P, Kamieniarz G, Lemeshko M, Michaeli K, Mujica V, Naaman R, Paltiel Y, Refaely-Abramson S, Tal O, Thijssen J, Thoss M, Van Ruitenbeek JM, Venkataraman L, Waldeck DH, Yan B, Kronik L. 2022. Theory of chirality induced spin selectivity: Progress and challenges. Advanced Materials. 34(13), 2106629.","short":"F. Evers, A. Aharony, N. Bar-Gill, O. Entin-Wohlman, P. Hedegård, O. Hod, P. Jelinek, G. Kamieniarz, M. Lemeshko, K. Michaeli, V. Mujica, R. Naaman, Y. Paltiel, S. Refaely-Abramson, O. Tal, J. Thijssen, M. Thoss, J.M. Van Ruitenbeek, L. Venkataraman, D.H. Waldeck, B. Yan, L. Kronik, Advanced Materials 34 (2022).","mla":"Evers, Ferdinand, et al. “Theory of Chirality Induced Spin Selectivity: Progress and Challenges.” <i>Advanced Materials</i>, vol. 34, no. 13, 2106629, Wiley, 2022, doi:<a href=\"https://doi.org/10.1002/adma.202106629\">10.1002/adma.202106629</a>."},"year":"2022","date_updated":"2023-08-02T14:30:22Z","volume":34,"intvolume":"        34","title":"Theory of chirality induced spin selectivity: Progress and challenges","department":[{"_id":"MiLe"}],"article_processing_charge":"No","date_created":"2022-02-20T23:01:33Z","publication_status":"published","issue":"13","author":[{"last_name":"Evers","first_name":"Ferdinand","full_name":"Evers, Ferdinand"},{"last_name":"Aharony","first_name":"Amnon","full_name":"Aharony, Amnon"},{"full_name":"Bar-Gill, Nir","last_name":"Bar-Gill","first_name":"Nir"},{"full_name":"Entin-Wohlman, Ora","first_name":"Ora","last_name":"Entin-Wohlman"},{"full_name":"Hedegård, Per","last_name":"Hedegård","first_name":"Per"},{"first_name":"Oded","last_name":"Hod","full_name":"Hod, Oded"},{"last_name":"Jelinek","first_name":"Pavel","full_name":"Jelinek, Pavel"},{"full_name":"Kamieniarz, Grzegorz","first_name":"Grzegorz","last_name":"Kamieniarz"},{"id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","full_name":"Lemeshko, Mikhail","orcid":"0000-0002-6990-7802","last_name":"Lemeshko","first_name":"Mikhail"},{"full_name":"Michaeli, Karen","last_name":"Michaeli","first_name":"Karen"},{"first_name":"Vladimiro","last_name":"Mujica","full_name":"Mujica, Vladimiro"},{"full_name":"Naaman, Ron","first_name":"Ron","last_name":"Naaman"},{"last_name":"Paltiel","first_name":"Yossi","full_name":"Paltiel, Yossi"},{"first_name":"Sivan","last_name":"Refaely-Abramson","full_name":"Refaely-Abramson, Sivan"},{"first_name":"Oren","last_name":"Tal","full_name":"Tal, Oren"},{"last_name":"Thijssen","first_name":"Jos","full_name":"Thijssen, Jos"},{"full_name":"Thoss, Michael","last_name":"Thoss","first_name":"Michael"},{"first_name":"Jan M.","last_name":"Van Ruitenbeek","full_name":"Van Ruitenbeek, Jan M."},{"full_name":"Venkataraman, Latha","first_name":"Latha","last_name":"Venkataraman"},{"full_name":"Waldeck, David H.","first_name":"David H.","last_name":"Waldeck"},{"full_name":"Yan, Binghai","first_name":"Binghai","last_name":"Yan"},{"full_name":"Kronik, Leeor","last_name":"Kronik","first_name":"Leeor"}],"scopus_import":"1","_id":"10771","article_type":"review","publisher":"Wiley","quality_controlled":"1"},{"citation":{"short":"M. Maslov, M. Lemeshko, A. Volosniev, Physical Review Research 4 (2022).","mla":"Maslov, Mikhail, et al. “Impurity with a Resonance in the Vicinity of the Fermi Energy.” <i>Physical Review Research</i>, vol. 4, 013160, American Physical Society, 2022, doi:<a href=\"https://doi.org/10.1103/PhysRevResearch.4.013160\">10.1103/PhysRevResearch.4.013160</a>.","ista":"Maslov M, Lemeshko M, Volosniev A. 2022. Impurity with a resonance in the vicinity of the Fermi energy. Physical Review Research. 4, 013160.","ama":"Maslov M, Lemeshko M, Volosniev A. Impurity with a resonance in the vicinity of the Fermi energy. <i>Physical Review Research</i>. 2022;4. doi:<a href=\"https://doi.org/10.1103/PhysRevResearch.4.013160\">10.1103/PhysRevResearch.4.013160</a>","apa":"Maslov, M., Lemeshko, M., &#38; Volosniev, A. (2022). Impurity with a resonance in the vicinity of the Fermi energy. <i>Physical Review Research</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevResearch.4.013160\">https://doi.org/10.1103/PhysRevResearch.4.013160</a>","chicago":"Maslov, Mikhail, Mikhail Lemeshko, and Artem Volosniev. “Impurity with a Resonance in the Vicinity of the Fermi Energy.” <i>Physical Review Research</i>. American Physical Society, 2022. <a href=\"https://doi.org/10.1103/PhysRevResearch.4.013160\">https://doi.org/10.1103/PhysRevResearch.4.013160</a>.","ieee":"M. Maslov, M. Lemeshko, and A. Volosniev, “Impurity with a resonance in the vicinity of the Fermi energy,” <i>Physical Review Research</i>, vol. 4. American Physical Society, 2022."},"year":"2022","date_updated":"2022-03-14T08:42:24Z","external_id":{"arxiv":["2111.13570"]},"day":"01","arxiv":1,"doi":"10.1103/PhysRevResearch.4.013160","abstract":[{"lang":"eng","text":"We study an impurity with a resonance level whose position coincides with the Fermi energy of the surrounding Fermi gas. An impurity causes a rapid variation of the scattering phase shift for fermions at the Fermi surface, introducing a new characteristic length scale into the problem. We investigate manifestations of this length scale in the self-energy of the impurity and in the density of the bath. Our calculations reveal a model-independent deformation of the density of the Fermi gas, which is determined by the width of the resonance. To provide a broader picture, we investigate time evolution of the density in quench dynamics, and study the behavior of the system at finite temperatures. Finally, we briefly discuss implications of our findings for the Fermi-polaron problem."}],"volume":4,"acknowledgement":"M.L. acknowledges support by the Austrian Science Fund (FWF), under Project No. P29902-N27, and by the European Research Council (ERC) starting Grant No. 801770 (ANGULON). A.G.V. acknowledges support by European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie Grant Agreement No. 754411.","ddc":["530"],"scopus_import":"1","_id":"10845","author":[{"id":"2E65BB0E-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-4074-2570","full_name":"Maslov, Mikhail","first_name":"Mikhail","last_name":"Maslov"},{"id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","first_name":"Mikhail","last_name":"Lemeshko","orcid":"0000-0002-6990-7802","full_name":"Lemeshko, Mikhail"},{"id":"37D278BC-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0003-0393-5525","full_name":"Volosniev, Artem","first_name":"Artem","last_name":"Volosniev"}],"date_created":"2022-03-13T23:01:46Z","article_processing_charge":"No","department":[{"_id":"MiLe"}],"publication_status":"published","intvolume":"         4","title":"Impurity with a resonance in the vicinity of the Fermi energy","ec_funded":1,"quality_controlled":"1","file_date_updated":"2022-03-14T08:38:49Z","publisher":"American Physical Society","article_type":"original","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"type":"journal_article","date_published":"2022-03-01T00:00:00Z","publication_identifier":{"issn":["2643-1564"]},"oa":1,"file":[{"date_updated":"2022-03-14T08:38:49Z","file_name":"2022_PhysicalReviewResearch_Maslov.pdf","content_type":"application/pdf","date_created":"2022-03-14T08:38:49Z","checksum":"62f64b3421a969656ebf52467fa7b6e8","file_size":1258324,"file_id":"10848","creator":"dernst","relation":"main_file","access_level":"open_access","success":1}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","status":"public","has_accepted_license":"1","publication":"Physical Review Research","project":[{"_id":"26031614-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"Quantum rotations in the presence of a many-body environment","grant_number":"P29902"},{"_id":"2688CF98-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","grant_number":"801770","name":"Angulon: physics and applications of a new quasiparticle"},{"call_identifier":"H2020","_id":"260C2330-B435-11E9-9278-68D0E5697425","grant_number":"754411","name":"ISTplus - Postdoctoral Fellowships"}],"oa_version":"Published Version","article_number":"013160","month":"03","language":[{"iso":"eng"}]},{"main_file_link":[{"url":"https://doi.org/10.48550/arXiv.2201.09281","open_access":"1"}],"status":"public","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","type":"journal_article","date_published":"2022-06-16T00:00:00Z","publication_identifier":{"issn":["00319007"],"eissn":["10797114"]},"oa":1,"language":[{"iso":"eng"}],"publication":"Physical Review Letters","project":[{"call_identifier":"H2020","_id":"2688CF98-B435-11E9-9278-68D0E5697425","name":"Angulon: physics and applications of a new quasiparticle","grant_number":"801770"},{"name":"International IST Doctoral Program","grant_number":"665385","call_identifier":"H2020","_id":"2564DBCA-B435-11E9-9278-68D0E5697425"}],"oa_version":"Submitted Version","article_number":"243201","month":"06","volume":128,"citation":{"apa":"Qiang, J., Zhou, L., Lu, P., Lin, K., Ma, Y., Pan, S., … Wu, J. (2022). Femtosecond rotational dynamics of D2 molecules in superfluid helium nanodroplets. <i>Physical Review Letters</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevLett.128.243201\">https://doi.org/10.1103/PhysRevLett.128.243201</a>","ama":"Qiang J, Zhou L, Lu P, et al. Femtosecond rotational dynamics of D2 molecules in superfluid helium nanodroplets. <i>Physical Review Letters</i>. 2022;128(24). doi:<a href=\"https://doi.org/10.1103/PhysRevLett.128.243201\">10.1103/PhysRevLett.128.243201</a>","chicago":"Qiang, Junjie, Lianrong Zhou, Peifen Lu, Kang Lin, Yongzhe Ma, Shengzhe Pan, Chenxu Lu, et al. “Femtosecond Rotational Dynamics of D2 Molecules in Superfluid Helium Nanodroplets.” <i>Physical Review Letters</i>. American Physical Society, 2022. <a href=\"https://doi.org/10.1103/PhysRevLett.128.243201\">https://doi.org/10.1103/PhysRevLett.128.243201</a>.","ieee":"J. Qiang <i>et al.</i>, “Femtosecond rotational dynamics of D2 molecules in superfluid helium nanodroplets,” <i>Physical Review Letters</i>, vol. 128, no. 24. American Physical Society, 2022.","mla":"Qiang, Junjie, et al. “Femtosecond Rotational Dynamics of D2 Molecules in Superfluid Helium Nanodroplets.” <i>Physical Review Letters</i>, vol. 128, no. 24, 243201, American Physical Society, 2022, doi:<a href=\"https://doi.org/10.1103/PhysRevLett.128.243201\">10.1103/PhysRevLett.128.243201</a>.","short":"J. Qiang, L. Zhou, P. Lu, K. Lin, Y. Ma, S. Pan, C. Lu, W. Jiang, F. Sun, W. Zhang, H. Li, X. Gong, I.S. Averbukh, Y. Prior, C.A. Schouder, H. Stapelfeldt, I. Cherepanov, M. Lemeshko, W. Jäger, J. Wu, Physical Review Letters 128 (2022).","ista":"Qiang J, Zhou L, Lu P, Lin K, Ma Y, Pan S, Lu C, Jiang W, Sun F, Zhang W, Li H, Gong X, Averbukh IS, Prior Y, Schouder CA, Stapelfeldt H, Cherepanov I, Lemeshko M, Jäger W, Wu J. 2022. Femtosecond rotational dynamics of D2 molecules in superfluid helium nanodroplets. Physical Review Letters. 128(24), 243201."},"year":"2022","date_updated":"2023-08-03T11:54:14Z","external_id":{"isi":["000820659700002"],"arxiv":["2201.09281"]},"isi":1,"day":"16","arxiv":1,"doi":"10.1103/PhysRevLett.128.243201","abstract":[{"text":"Rotational dynamics of D2 molecules inside helium nanodroplets is induced by a moderately intense femtosecond pump pulse and measured as a function of time by recording the yield of HeD+ ions, created through strong-field dissociative ionization with a delayed femtosecond probe pulse. The yield oscillates with a period of 185 fs, reflecting field-free rotational wave packet dynamics, and the oscillation persists for more than 500 periods. Within the experimental uncertainty, the rotational constant BHe of the in-droplet D2 molecule, determined by Fourier analysis, is the same as Bgas for an isolated D2 molecule. Our observations show that the D2 molecules inside helium nanodroplets essentially rotate as free D2 molecules.","lang":"eng"}],"ec_funded":1,"quality_controlled":"1","publisher":"American Physical Society","scopus_import":"1","_id":"11552","issue":"24","author":[{"first_name":"Junjie","last_name":"Qiang","full_name":"Qiang, Junjie"},{"full_name":"Zhou, Lianrong","first_name":"Lianrong","last_name":"Zhou"},{"first_name":"Peifen","last_name":"Lu","full_name":"Lu, Peifen"},{"first_name":"Kang","last_name":"Lin","full_name":"Lin, Kang"},{"full_name":"Ma, Yongzhe","first_name":"Yongzhe","last_name":"Ma"},{"first_name":"Shengzhe","last_name":"Pan","full_name":"Pan, Shengzhe"},{"full_name":"Lu, Chenxu","first_name":"Chenxu","last_name":"Lu"},{"full_name":"Jiang, Wenyu","last_name":"Jiang","first_name":"Wenyu"},{"last_name":"Sun","first_name":"Fenghao","full_name":"Sun, Fenghao"},{"last_name":"Zhang","first_name":"Wenbin","full_name":"Zhang, Wenbin"},{"full_name":"Li, Hui","last_name":"Li","first_name":"Hui"},{"first_name":"Xiaochun","last_name":"Gong","full_name":"Gong, Xiaochun"},{"first_name":"Ilya Sh","last_name":"Averbukh","full_name":"Averbukh, Ilya Sh"},{"full_name":"Prior, Yehiam","first_name":"Yehiam","last_name":"Prior"},{"full_name":"Schouder, Constant A.","last_name":"Schouder","first_name":"Constant A."},{"last_name":"Stapelfeldt","first_name":"Henrik","full_name":"Stapelfeldt, Henrik"},{"id":"339C7E5A-F248-11E8-B48F-1D18A9856A87","full_name":"Cherepanov, Igor","last_name":"Cherepanov","first_name":"Igor"},{"orcid":"0000-0002-6990-7802","full_name":"Lemeshko, Mikhail","first_name":"Mikhail","last_name":"Lemeshko","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Jäger, Wolfgang","first_name":"Wolfgang","last_name":"Jäger"},{"full_name":"Wu, Jian","first_name":"Jian","last_name":"Wu"}],"article_processing_charge":"No","date_created":"2022-07-10T22:01:52Z","department":[{"_id":"MiLe"}],"publication_status":"published","intvolume":"       128","title":"Femtosecond rotational dynamics of D2 molecules in superfluid helium nanodroplets"},{"intvolume":"        24","title":"Artificial atoms from cold bosons in one dimension","department":[{"_id":"MiLe"}],"date_created":"2022-07-17T22:01:55Z","article_processing_charge":"No","publication_status":"published","issue":"6","author":[{"full_name":"Brauneis, Fabian","first_name":"Fabian","last_name":"Brauneis"},{"full_name":"Backert, Timothy G.","last_name":"Backert","first_name":"Timothy G."},{"full_name":"Mistakidis, Simeon I.","first_name":"Simeon I.","last_name":"Mistakidis"},{"orcid":"0000-0002-6990-7802","full_name":"Lemeshko, Mikhail","first_name":"Mikhail","last_name":"Lemeshko","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Hammer, Hans Werner","last_name":"Hammer","first_name":"Hans Werner"},{"orcid":"0000-0003-0393-5525","full_name":"Volosniev, Artem","first_name":"Artem","last_name":"Volosniev","id":"37D278BC-F248-11E8-B48F-1D18A9856A87"}],"scopus_import":"1","_id":"11590","article_type":"original","publisher":"IOP Publishing","file_date_updated":"2022-07-18T06:33:13Z","ec_funded":1,"quality_controlled":"1","abstract":[{"lang":"eng","text":"We investigate the ground-state properties of weakly repulsive one-dimensional bosons in the presence of an attractive zero-range impurity potential. First, we derive mean-field solutions to the problem on a finite ring for the two asymptotic cases: (i) all bosons are bound to the impurity and (ii) all bosons are in a scattering state. Moreover, we derive the critical line that separates these regimes in the parameter space. In the thermodynamic limit, this critical line determines the maximum number of bosons that can be bound by the impurity potential, forming an artificial atom. Second, we validate the mean-field results using the flow equation approach and the multi-layer multi-configuration time-dependent Hartree method for atomic mixtures. While beyond-mean-field effects destroy long-range order in the Bose gas, the critical boson number is unaffected. Our findings are important for understanding such artificial atoms in low-density Bose gases with static and mobile impurities."}],"day":"01","doi":"10.1088/1367-2630/ac78d8","external_id":{"isi":["000818530000001"]},"isi":1,"citation":{"short":"F. Brauneis, T.G. Backert, S.I. Mistakidis, M. Lemeshko, H.W. Hammer, A. Volosniev, New Journal of Physics 24 (2022).","mla":"Brauneis, Fabian, et al. “Artificial Atoms from Cold Bosons in One Dimension.” <i>New Journal of Physics</i>, vol. 24, no. 6, 063036, IOP Publishing, 2022, doi:<a href=\"https://doi.org/10.1088/1367-2630/ac78d8\">10.1088/1367-2630/ac78d8</a>.","ista":"Brauneis F, Backert TG, Mistakidis SI, Lemeshko M, Hammer HW, Volosniev A. 2022. Artificial atoms from cold bosons in one dimension. New Journal of Physics. 24(6), 063036.","ama":"Brauneis F, Backert TG, Mistakidis SI, Lemeshko M, Hammer HW, Volosniev A. Artificial atoms from cold bosons in one dimension. <i>New Journal of Physics</i>. 2022;24(6). doi:<a href=\"https://doi.org/10.1088/1367-2630/ac78d8\">10.1088/1367-2630/ac78d8</a>","apa":"Brauneis, F., Backert, T. G., Mistakidis, S. I., Lemeshko, M., Hammer, H. W., &#38; Volosniev, A. (2022). Artificial atoms from cold bosons in one dimension. <i>New Journal of Physics</i>. IOP Publishing. <a href=\"https://doi.org/10.1088/1367-2630/ac78d8\">https://doi.org/10.1088/1367-2630/ac78d8</a>","chicago":"Brauneis, Fabian, Timothy G. Backert, Simeon I. Mistakidis, Mikhail Lemeshko, Hans Werner Hammer, and Artem Volosniev. “Artificial Atoms from Cold Bosons in One Dimension.” <i>New Journal of Physics</i>. IOP Publishing, 2022. <a href=\"https://doi.org/10.1088/1367-2630/ac78d8\">https://doi.org/10.1088/1367-2630/ac78d8</a>.","ieee":"F. Brauneis, T. G. Backert, S. I. Mistakidis, M. Lemeshko, H. W. Hammer, and A. Volosniev, “Artificial atoms from cold bosons in one dimension,” <i>New Journal of Physics</i>, vol. 24, no. 6. IOP Publishing, 2022."},"year":"2022","date_updated":"2023-08-03T11:57:41Z","ddc":["530"],"acknowledgement":"This work has received funding from the DFG Project No. 413495248 [VO 2437/1-1] (FB, H-WH, AGV) and European Union's Horizon 2020 research and innovation programme under the Marie Skĺodowska-Curie Grant Agreement No. 754411 (AGV). ML acknowledges support by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON). SIM acknowledges support from the NSF through a grant for ITAMP at Harvard University.","volume":24,"article_number":"063036","month":"06","project":[{"grant_number":"754411","name":"ISTplus - Postdoctoral Fellowships","_id":"260C2330-B435-11E9-9278-68D0E5697425","call_identifier":"H2020"},{"_id":"2688CF98-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","grant_number":"801770","name":"Angulon: physics and applications of a new quasiparticle"}],"oa_version":"Published Version","has_accepted_license":"1","publication":"New Journal of Physics","language":[{"iso":"eng"}],"oa":1,"publication_identifier":{"issn":["1367-2630"]},"type":"journal_article","date_published":"2022-06-01T00:00:00Z","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"status":"public","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","file":[{"date_created":"2022-07-18T06:33:13Z","checksum":"dc67b60f2e50e9ef2bd820ca0d7333d2","file_size":3415721,"date_updated":"2022-07-18T06:33:13Z","file_name":"2022_NewJournalPhysics_Brauneis.pdf","content_type":"application/pdf","relation":"main_file","success":1,"access_level":"open_access","file_id":"11594","creator":"dernst"}]},{"oa_version":"Preprint","month":"06","article_number":"063329","publication":"Physical Review A","language":[{"iso":"eng"}],"publication_identifier":{"eissn":["2469-9934"],"issn":["2469-9926"]},"oa":1,"date_published":"2022-06-30T00:00:00Z","type":"journal_article","main_file_link":[{"url":" https://doi.org/10.48550/arXiv.2206.03924","open_access":"1"}],"status":"public","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","publication_status":"published","department":[{"_id":"MiLe"}],"article_processing_charge":"No","date_created":"2022-07-17T22:01:55Z","title":"Unitary Fermi superfluid near the critical temperature: Thermodynamics and sound modes from elementary excitations","intvolume":"       105","_id":"11592","scopus_import":"1","author":[{"id":"4CA96FD4-F248-11E8-B48F-1D18A9856A87","last_name":"Bighin","first_name":"Giacomo","full_name":"Bighin, Giacomo","orcid":"0000-0001-8823-9777"},{"id":"9d13b3cb-30a2-11eb-80dc-f772505e8660","orcid":"0000-0001-6110-2359","full_name":"Cappellaro, Alberto","first_name":"Alberto","last_name":"Cappellaro"},{"last_name":"Salasnich","first_name":"L.","full_name":"Salasnich, L."}],"issue":"6","publisher":"American Physical Society","article_type":"original","quality_controlled":"1","arxiv":1,"doi":"10.1103/PhysRevA.105.063329","day":"30","abstract":[{"lang":"eng","text":"We compare recent experimental results [Science 375, 528 (2022)] of the superfluid unitary Fermi gas near the critical temperature with a thermodynamic model based on the elementary excitations of the system. We find good agreement between experimental data and our theory for several quantities such as first sound, second sound, and superfluid fraction. We also show that mode mixing between first and second sound occurs. Finally, we characterize the response amplitude to a density perturbation: Close to the critical temperature both first and second sound can be excited through a density perturbation, whereas at lower temperatures only the first sound mode exhibits a significant response."}],"date_updated":"2023-08-03T12:00:11Z","year":"2022","citation":{"apa":"Bighin, G., Cappellaro, A., &#38; Salasnich, L. (2022). Unitary Fermi superfluid near the critical temperature: Thermodynamics and sound modes from elementary excitations. <i>Physical Review A</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevA.105.063329\">https://doi.org/10.1103/PhysRevA.105.063329</a>","ama":"Bighin G, Cappellaro A, Salasnich L. Unitary Fermi superfluid near the critical temperature: Thermodynamics and sound modes from elementary excitations. <i>Physical Review A</i>. 2022;105(6). doi:<a href=\"https://doi.org/10.1103/PhysRevA.105.063329\">10.1103/PhysRevA.105.063329</a>","chicago":"Bighin, Giacomo, Alberto Cappellaro, and L. Salasnich. “Unitary Fermi Superfluid near the Critical Temperature: Thermodynamics and Sound Modes from Elementary Excitations.” <i>Physical Review A</i>. American Physical Society, 2022. <a href=\"https://doi.org/10.1103/PhysRevA.105.063329\">https://doi.org/10.1103/PhysRevA.105.063329</a>.","ieee":"G. Bighin, A. Cappellaro, and L. Salasnich, “Unitary Fermi superfluid near the critical temperature: Thermodynamics and sound modes from elementary excitations,” <i>Physical Review A</i>, vol. 105, no. 6. American Physical Society, 2022.","short":"G. Bighin, A. Cappellaro, L. Salasnich, Physical Review A 105 (2022).","mla":"Bighin, Giacomo, et al. “Unitary Fermi Superfluid near the Critical Temperature: Thermodynamics and Sound Modes from Elementary Excitations.” <i>Physical Review A</i>, vol. 105, no. 6, 063329, American Physical Society, 2022, doi:<a href=\"https://doi.org/10.1103/PhysRevA.105.063329\">10.1103/PhysRevA.105.063329</a>.","ista":"Bighin G, Cappellaro A, Salasnich L. 2022. Unitary Fermi superfluid near the critical temperature: Thermodynamics and sound modes from elementary excitations. Physical Review A. 105(6), 063329."},"isi":1,"external_id":{"isi":["000829758500010"],"arxiv":["2206.03924"]},"volume":105,"acknowledgement":"The authors gratefully acknowledge stimulating discussions with T. Enss, and thank an anonymous referee for suggestions and remarks that allowed us to improve the original manuscript. This work is supported by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy EXC2181/1-390900948 (the Heidelberg STRUCTURES Excellence Cluster)."},{"day":"04","doi":"10.1103/PhysRevA.106.023301","arxiv":1,"abstract":[{"text":"We study the fate of an impurity in an ultracold heteronuclear Bose mixture, focusing on the experimentally relevant case of a ⁴¹K - ⁸⁷Rb mixture, with the impurity in a ⁴¹K hyperfine state. Our paper provides a comprehensive description of an impurity in a BEC mixture with contact interactions across its phase diagram. We present results for the miscible and immiscible regimes, as well as for the impurity in a self-bound quantum droplet. Here, varying the interactions, we find exotic states where the impurity localizes either at the center or\r\nat the surface of the droplet. ","lang":"eng"}],"year":"2022","citation":{"ieee":"G. Bighin, A. Burchianti, F. Minardi, and T. Macrì, “Impurity in a heteronuclear two-component Bose mixture,” <i>Physical Review A</i>, vol. 106, no. 2. American Physical Society, 2022.","chicago":"Bighin, Giacomo, A. Burchianti, F. Minardi, and T. Macrì. “Impurity in a Heteronuclear Two-Component Bose Mixture.” <i>Physical Review A</i>. American Physical Society, 2022. <a href=\"https://doi.org/10.1103/PhysRevA.106.023301\">https://doi.org/10.1103/PhysRevA.106.023301</a>.","apa":"Bighin, G., Burchianti, A., Minardi, F., &#38; Macrì, T. (2022). Impurity in a heteronuclear two-component Bose mixture. <i>Physical Review A</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevA.106.023301\">https://doi.org/10.1103/PhysRevA.106.023301</a>","ama":"Bighin G, Burchianti A, Minardi F, Macrì T. Impurity in a heteronuclear two-component Bose mixture. <i>Physical Review A</i>. 2022;106(2). doi:<a href=\"https://doi.org/10.1103/PhysRevA.106.023301\">10.1103/PhysRevA.106.023301</a>","ista":"Bighin G, Burchianti A, Minardi F, Macrì T. 2022. Impurity in a heteronuclear two-component Bose mixture. Physical Review A. 106(2), 023301.","mla":"Bighin, Giacomo, et al. “Impurity in a Heteronuclear Two-Component Bose Mixture.” <i>Physical Review A</i>, vol. 106, no. 2, 023301, American Physical Society, 2022, doi:<a href=\"https://doi.org/10.1103/PhysRevA.106.023301\">10.1103/PhysRevA.106.023301</a>.","short":"G. Bighin, A. Burchianti, F. Minardi, T. Macrì, Physical Review A 106 (2022)."},"date_updated":"2024-08-07T07:16:52Z","external_id":{"isi":["000837953600006"],"arxiv":["2109.07451"]},"isi":1,"volume":106,"acknowledgement":"We thank A. Simoni for providing the calculations of the intercomponent scattering lengths. We gratefully acknowledge stimulating discussions with L. A. Peña Ardila, R. Schmidt, H. Silva, V. Zampronio, and M. Prevedelli for careful reading. G.B. acknowledges support from the Austrian Science Fund (FWF) under Project No. M2641-N27. T.M. acknowledges CNPq for support through Bolsa de produtividade em Pesquisa No. 311079/2015-6. This work is supported by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy No. EXC2181/1-390900948 (the Heidelberg STRUCTURES Excellence Cluster). This work was supported by the Serrapilheira Institute (Grant No. Serra-1812-27802). We thank the High-Performance Computing Center (NPAD) at UFRN for providing computational resources.","department":[{"_id":"MiLe"}],"date_created":"2022-08-28T22:02:00Z","article_processing_charge":"No","publication_status":"published","intvolume":"       106","title":"Impurity in a heteronuclear two-component Bose mixture","scopus_import":"1","_id":"11997","issue":"2","author":[{"id":"4CA96FD4-F248-11E8-B48F-1D18A9856A87","full_name":"Bighin, Giacomo","orcid":"0000-0001-8823-9777","last_name":"Bighin","first_name":"Giacomo"},{"full_name":"Burchianti, A.","last_name":"Burchianti","first_name":"A."},{"first_name":"F.","last_name":"Minardi","full_name":"Minardi, F."},{"full_name":"Macrì, T.","first_name":"T.","last_name":"Macrì"}],"publisher":"American Physical Society","article_type":"original","quality_controlled":"1","publication_identifier":{"issn":["2469-9926"],"eissn":["2469-9934"]},"oa":1,"type":"journal_article","date_published":"2022-08-04T00:00:00Z","main_file_link":[{"url":"https://doi.org/10.48550/arXiv.2109.07451","open_access":"1"}],"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","status":"public","project":[{"_id":"26986C82-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"A path-integral approach to composite impurities","grant_number":"M02641"}],"oa_version":"Preprint","article_number":"023301","month":"08","publication":"Physical Review A","language":[{"iso":"eng"}]},{"doi":"10.1088/1367-2630/ac8113","day":"11","abstract":[{"text":"Recently it became possible to study highly excited rotational states of molecules in superfluid helium through nonadiabatic alignment experiments (Cherepanov et al 2021 Phys. Rev. A 104 L061303). This calls for theoretical approaches that go beyond explaining renormalized values of molecular spectroscopic constants, which suffices when only the lowest few rotational states are involved. As the first step in this direction, here we present a basic quantum mechanical model describing highly excited rotational states of molecules in superfluid helium nanodroplets. We show that a linear molecule immersed in a superfluid can be seen as an effective symmetric top, similar to the rotational structure of radicals, such as OH or NO, but with the angular momentum of the superfluid playing the role of the electronic angular momentum in free molecules. The simple theory sheds light onto what happens when the rotational angular momentum of the molecule increases beyond the lowest excited states accessible by infrared spectroscopy. In addition, the model allows to estimate the effective rotational and centrifugal distortion constants for a broad range of species and to explain the crossover between light and heavy molecules in superfluid 4He in terms of the many-body wavefunction structure. Some of the above mentioned insights can be acquired by analyzing a simple 2 × 2 matrix.","lang":"eng"}],"date_updated":"2024-08-07T07:16:52Z","citation":{"mla":"Cherepanov, Igor, et al. “A Simple Model for High Rotational Excitations of Molecules in a Superfluid.” <i>New Journal of Physics</i>, vol. 24, no. 7, 075004, IOP, 2022, doi:<a href=\"https://doi.org/10.1088/1367-2630/ac8113\">10.1088/1367-2630/ac8113</a>.","short":"I. Cherepanov, G. Bighin, C.A. Schouder, A.S. Chatterley, H. Stapelfeldt, M. Lemeshko, New Journal of Physics 24 (2022).","ista":"Cherepanov I, Bighin G, Schouder CA, Chatterley AS, Stapelfeldt H, Lemeshko M. 2022. A simple model for high rotational excitations of molecules in a superfluid. New Journal of Physics. 24(7), 075004.","ama":"Cherepanov I, Bighin G, Schouder CA, Chatterley AS, Stapelfeldt H, Lemeshko M. A simple model for high rotational excitations of molecules in a superfluid. <i>New Journal of Physics</i>. 2022;24(7). doi:<a href=\"https://doi.org/10.1088/1367-2630/ac8113\">10.1088/1367-2630/ac8113</a>","apa":"Cherepanov, I., Bighin, G., Schouder, C. A., Chatterley, A. S., Stapelfeldt, H., &#38; Lemeshko, M. (2022). A simple model for high rotational excitations of molecules in a superfluid. <i>New Journal of Physics</i>. IOP. <a href=\"https://doi.org/10.1088/1367-2630/ac8113\">https://doi.org/10.1088/1367-2630/ac8113</a>","chicago":"Cherepanov, Igor, Giacomo Bighin, Constant A. Schouder, Adam S. Chatterley, Henrik Stapelfeldt, and Mikhail Lemeshko. “A Simple Model for High Rotational Excitations of Molecules in a Superfluid.” <i>New Journal of Physics</i>. IOP, 2022. <a href=\"https://doi.org/10.1088/1367-2630/ac8113\">https://doi.org/10.1088/1367-2630/ac8113</a>.","ieee":"I. Cherepanov, G. Bighin, C. A. Schouder, A. S. Chatterley, H. Stapelfeldt, and M. Lemeshko, “A simple model for high rotational excitations of molecules in a superfluid,” <i>New Journal of Physics</i>, vol. 24, no. 7. IOP, 2022."},"year":"2022","isi":1,"external_id":{"isi":["000839216900001"]},"volume":24,"acknowledgement":"IC acknowledges the support by the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie Grant Agreement No. 665385. GB acknowledges support from the Austrian Science Fund (FWF), under Project No. M2461-N27 and from the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy EXC2181/1-390900948 (the Heidelberg STRUCTURES Excellence Cluster). ML acknowledges support by the Austrian Science Fund (FWF), under Project No. P29902-N27, and by the European Research Council (ERC) starting Grant No. 801770 (ANGULON). HS acknowledges support from the Independent Research Fund Denmark (Project No. 8021-00232B) and from the Villum Fonden through a Villum Investigator Grant No. 25886.","ddc":["530"],"publication_status":"published","date_created":"2022-08-28T22:02:01Z","department":[{"_id":"MiLe"}],"article_processing_charge":"Yes","title":"A simple model for high rotational excitations of molecules in a superfluid","intvolume":"        24","_id":"11998","scopus_import":"1","author":[{"id":"339C7E5A-F248-11E8-B48F-1D18A9856A87","last_name":"Cherepanov","first_name":"Igor","full_name":"Cherepanov, Igor"},{"first_name":"Giacomo","last_name":"Bighin","orcid":"0000-0001-8823-9777","full_name":"Bighin, Giacomo","id":"4CA96FD4-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Constant A.","last_name":"Schouder","full_name":"Schouder, Constant A."},{"last_name":"Chatterley","first_name":"Adam S.","full_name":"Chatterley, Adam S."},{"full_name":"Stapelfeldt, Henrik","last_name":"Stapelfeldt","first_name":"Henrik"},{"first_name":"Mikhail","last_name":"Lemeshko","orcid":"0000-0002-6990-7802","full_name":"Lemeshko, Mikhail","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87"}],"issue":"7","publisher":"IOP","article_type":"original","quality_controlled":"1","ec_funded":1,"file_date_updated":"2022-08-29T09:57:40Z","publication_identifier":{"issn":["1367-2630"]},"oa":1,"tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"date_published":"2022-08-11T00:00:00Z","type":"journal_article","file":[{"date_created":"2022-08-29T09:57:40Z","checksum":"10116a08d3489befc13dba2cc44490f1","file_size":1912882,"date_updated":"2022-08-29T09:57:40Z","content_type":"application/pdf","file_name":"2022_NewJournalofPhysics_Cherepanov.pdf","success":1,"access_level":"open_access","relation":"main_file","file_id":"12005","creator":"alisjak"}],"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","status":"public","oa_version":"Published Version","project":[{"_id":"2564DBCA-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","name":"International IST Doctoral Program","grant_number":"665385"},{"_id":"2688CF98-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","grant_number":"801770","name":"Angulon: physics and applications of a new quasiparticle"},{"_id":"26986C82-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"A path-integral approach to composite impurities","grant_number":"M02641"}],"month":"08","article_number":"075004","publication":"New Journal of Physics","has_accepted_license":"1","language":[{"iso":"eng"}]},{"acknowledgement":"We thank Armin Rahmani, Andrey V. Chubukov, Jay D. Sau and Ruixing Zhang for fruitful discussions. AK and PG are supported by NSF-DMR2037996. PG also acknowledges support from NSF-DMR1824265. RMF was supported by the U. S. Department of Energy, Office\r\nof Science, Basic Energy Sciences, Materials Sciences and Engineering Division, under Award No. DE-SC0020045. Part of this work was performed at the Aspen Center for Physics, which is supported by National Science Foundation grant PHY-1607611. ","volume":106,"date_updated":"2023-08-04T08:55:31Z","year":"2022","citation":{"chicago":"Ghazaryan, Areg, Ammar Kirmani, Rafael M. Fernandes, and Pouyan Ghaemi. “Anomalous Shiba States in Topological Iron-Based Superconductors.” <i>Physical Review B</i>. American Physical Society, 2022. <a href=\"https://doi.org/10.1103/physrevb.106.l201107\">https://doi.org/10.1103/physrevb.106.l201107</a>.","ieee":"A. Ghazaryan, A. Kirmani, R. M. Fernandes, and P. Ghaemi, “Anomalous Shiba states in topological iron-based superconductors,” <i>Physical Review B</i>, vol. 106, no. 20. American Physical Society, 2022.","ama":"Ghazaryan A, Kirmani A, Fernandes RM, Ghaemi P. Anomalous Shiba states in topological iron-based superconductors. <i>Physical Review B</i>. 2022;106(20). doi:<a href=\"https://doi.org/10.1103/physrevb.106.l201107\">10.1103/physrevb.106.l201107</a>","apa":"Ghazaryan, A., Kirmani, A., Fernandes, R. M., &#38; Ghaemi, P. (2022). Anomalous Shiba states in topological iron-based superconductors. <i>Physical Review B</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physrevb.106.l201107\">https://doi.org/10.1103/physrevb.106.l201107</a>","ista":"Ghazaryan A, Kirmani A, Fernandes RM, Ghaemi P. 2022. Anomalous Shiba states in topological iron-based superconductors. Physical Review B. 106(20), L201107.","mla":"Ghazaryan, Areg, et al. “Anomalous Shiba States in Topological Iron-Based Superconductors.” <i>Physical Review B</i>, vol. 106, no. 20, L201107, American Physical Society, 2022, doi:<a href=\"https://doi.org/10.1103/physrevb.106.l201107\">10.1103/physrevb.106.l201107</a>.","short":"A. Ghazaryan, A. Kirmani, R.M. Fernandes, P. Ghaemi, Physical Review B 106 (2022)."},"isi":1,"external_id":{"isi":["000893171800001"],"arxiv":["2207.12425"]},"doi":"10.1103/physrevb.106.l201107","arxiv":1,"day":"15","abstract":[{"lang":"eng","text":"We demonstrate the formation of robust zero-energy modes close to magnetic impurities in the iron-based superconductor FeSe1-z Tez. We find that the Zeeman field generated by the impurity favors a spin-triplet interorbital pairing as opposed to the spin-singlet intraorbital pairing prevalent in the bulk. The preferred spin-triplet pairing preserves time-reversal symmetry and is topological, as robust, topologically protected zero modes emerge at the boundary between regions with different pairing states. Moreover, the zero modes form Kramers doublets that are insensitive to the direction of the spin polarization or to the separation between impurities. We argue that our theoretical results are consistent with recent experimental measurements on FeSe1-z Tez."}],"quality_controlled":"1","publisher":"American Physical Society","article_type":"original","_id":"12139","scopus_import":"1","author":[{"id":"4AF46FD6-F248-11E8-B48F-1D18A9856A87","first_name":"Areg","last_name":"Ghazaryan","orcid":"0000-0001-9666-3543","full_name":"Ghazaryan, Areg"},{"last_name":"Kirmani","first_name":"Ammar","full_name":"Kirmani, Ammar"},{"last_name":"Fernandes","first_name":"Rafael M.","full_name":"Fernandes, Rafael M."},{"full_name":"Ghaemi, Pouyan","first_name":"Pouyan","last_name":"Ghaemi"}],"issue":"20","publication_status":"published","date_created":"2023-01-12T12:04:43Z","department":[{"_id":"MiLe"}],"article_processing_charge":"No","title":"Anomalous Shiba states in topological iron-based superconductors","intvolume":"       106","main_file_link":[{"url":" https://doi.org/10.48550/arXiv.2207.12425","open_access":"1"}],"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","status":"public","date_published":"2022-11-15T00:00:00Z","type":"journal_article","publication_identifier":{"issn":["2469-9950"],"eissn":["2469-9969"]},"oa":1,"language":[{"iso":"eng"}],"publication":"Physical Review B","oa_version":"Preprint","month":"11","article_number":"L201107"},{"acknowledgement":"We acknowledge fruitful discussions with G. Bighin, G. Fabiani, A. Ghazaryan, C. Lampert, and A. Volosniev at various stages of this work. W.R. acknowledges support through a DOC Fellowship of the Austrian Academy of Sciences and has received funding from the EU Horizon 2020 programme under the Marie Skłodowska-Curie Grant Agreement No. 665385. M.L. and J.H.M. acknowledge support by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON) and Synergy Grant No. 856538 (3D-MAGiC), respectively. This work is part of the Shell-NWO/FOMinitiative “Computational sciences for energy research” of Shell and Chemical Sciences, Earth and Life Sciences, Physical Sciences, FOM and STW. ","volume":106,"year":"2022","citation":{"short":"W. Rzadkowski, M. Lemeshko, J.H. Mentink, Physical Review B 106 (2022).","mla":"Rzadkowski, Wojciech, et al. “Artificial Neural Network States for Nonadditive Systems.” <i>Physical Review B</i>, vol. 106, no. 15, 155127, American Physical Society, 2022, doi:<a href=\"https://doi.org/10.1103/physrevb.106.155127\">10.1103/physrevb.106.155127</a>.","ista":"Rzadkowski W, Lemeshko M, Mentink JH. 2022. Artificial neural network states for nonadditive systems. Physical Review B. 106(15), 155127.","apa":"Rzadkowski, W., Lemeshko, M., &#38; Mentink, J. H. (2022). Artificial neural network states for nonadditive systems. <i>Physical Review B</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physrevb.106.155127\">https://doi.org/10.1103/physrevb.106.155127</a>","ama":"Rzadkowski W, Lemeshko M, Mentink JH. Artificial neural network states for nonadditive systems. <i>Physical Review B</i>. 2022;106(15). doi:<a href=\"https://doi.org/10.1103/physrevb.106.155127\">10.1103/physrevb.106.155127</a>","ieee":"W. Rzadkowski, M. Lemeshko, and J. H. Mentink, “Artificial neural network states for nonadditive systems,” <i>Physical Review B</i>, vol. 106, no. 15. American Physical Society, 2022.","chicago":"Rzadkowski, Wojciech, Mikhail Lemeshko, and Johan H. Mentink. “Artificial Neural Network States for Nonadditive Systems.” <i>Physical Review B</i>. American Physical Society, 2022. <a href=\"https://doi.org/10.1103/physrevb.106.155127\">https://doi.org/10.1103/physrevb.106.155127</a>."},"date_updated":"2023-08-04T09:01:48Z","external_id":{"arxiv":["2105.15193"],"isi":["000875189100005"]},"isi":1,"day":"15","arxiv":1,"doi":"10.1103/physrevb.106.155127","abstract":[{"lang":"eng","text":"Methods inspired from machine learning have recently attracted great interest in the computational study of quantum many-particle systems. So far, however, it has proven challenging to deal with microscopic models in which the total number of particles is not conserved. To address this issue, we propose a variant of neural network states, which we term neural coherent states. Taking the Fröhlich impurity model as a case study, we show that neural coherent states can learn the ground state of nonadditive systems very well. In particular, we recover exact diagonalization in all regimes tested and observe substantial improvement over the standard coherent state estimates in the most challenging intermediate-coupling regime. Our approach is generic and does not assume specific details of the system, suggesting wide applications."}],"ec_funded":1,"quality_controlled":"1","publisher":"American Physical Society","article_type":"original","scopus_import":"1","_id":"12150","issue":"15","author":[{"id":"48C55298-F248-11E8-B48F-1D18A9856A87","last_name":"Rzadkowski","first_name":"Wojciech","full_name":"Rzadkowski, Wojciech","orcid":"0000-0002-1106-4419"},{"id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-6990-7802","full_name":"Lemeshko, Mikhail","first_name":"Mikhail","last_name":"Lemeshko"},{"full_name":"Mentink, Johan H.","first_name":"Johan H.","last_name":"Mentink"}],"date_created":"2023-01-12T12:07:49Z","department":[{"_id":"MiLe"}],"article_processing_charge":"No","publication_status":"published","intvolume":"       106","title":"Artificial neural network states for nonadditive systems","main_file_link":[{"open_access":"1","url":" https://doi.org/10.48550/arXiv.2105.15193"}],"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","status":"public","type":"journal_article","date_published":"2022-10-15T00:00:00Z","publication_identifier":{"eissn":["2469-9969"],"issn":["2469-9950"]},"oa":1,"language":[{"iso":"eng"}],"publication":"Physical Review B","project":[{"_id":"05A235A0-7A3F-11EA-A408-12923DDC885E","grant_number":"25681","name":"Analytic and machine learning approaches to composite quantum impurities"},{"_id":"2564DBCA-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","grant_number":"665385","name":"International IST Doctoral Program"},{"_id":"2688CF98-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","name":"Angulon: physics and applications of a new quasiparticle","grant_number":"801770"}],"oa_version":"Preprint","article_number":"155127","month":"10"},{"volume":14,"acknowledgement":"This research is partially supported by University of Padova, BIRD grant “Ultracold atoms\r\nin curved geometries”. KF is supported by Fondazione CARIPARO with a PhD fellowship. AT is\r\npartially supported by French National Research Agency ANR Grant Droplets N. ANR-19-CE30-0003-02. LS thanks Herwig Ott and Sandro Wimberger for their kind invitation to the\r\nInternational Workshop “Quantum Transport with ultracold atoms” (2022).","ddc":["530"],"date_updated":"2023-08-09T10:13:17Z","citation":{"mla":"Salasnich, Luca, et al. “First and Second Sound in Two-Dimensional Bosonic and Fermionic Superfluids.” <i>Symmetry</i>, vol. 14, no. 10, 2182, MDPI, 2022, doi:<a href=\"https://doi.org/10.3390/sym14102182\">10.3390/sym14102182</a>.","short":"L. Salasnich, A. Cappellaro, K. Furutani, A. Tononi, G. Bighin, Symmetry 14 (2022).","ista":"Salasnich L, Cappellaro A, Furutani K, Tononi A, Bighin G. 2022. First and second sound in two-dimensional bosonic and fermionic superfluids. Symmetry. 14(10), 2182.","ama":"Salasnich L, Cappellaro A, Furutani K, Tononi A, Bighin G. First and second sound in two-dimensional bosonic and fermionic superfluids. <i>Symmetry</i>. 2022;14(10). doi:<a href=\"https://doi.org/10.3390/sym14102182\">10.3390/sym14102182</a>","apa":"Salasnich, L., Cappellaro, A., Furutani, K., Tononi, A., &#38; Bighin, G. (2022). First and second sound in two-dimensional bosonic and fermionic superfluids. <i>Symmetry</i>. MDPI. <a href=\"https://doi.org/10.3390/sym14102182\">https://doi.org/10.3390/sym14102182</a>","ieee":"L. Salasnich, A. Cappellaro, K. Furutani, A. Tononi, and G. Bighin, “First and second sound in two-dimensional bosonic and fermionic superfluids,” <i>Symmetry</i>, vol. 14, no. 10. MDPI, 2022.","chicago":"Salasnich, Luca, Alberto Cappellaro, Koichiro Furutani, Andrea Tononi, and Giacomo Bighin. “First and Second Sound in Two-Dimensional Bosonic and Fermionic Superfluids.” <i>Symmetry</i>. MDPI, 2022. <a href=\"https://doi.org/10.3390/sym14102182\">https://doi.org/10.3390/sym14102182</a>."},"year":"2022","isi":1,"external_id":{"isi":["000875039200001"]},"doi":"10.3390/sym14102182","day":"17","abstract":[{"lang":"eng","text":"We review our theoretical results of the sound propagation in two-dimensional (2D) systems of ultracold fermionic and bosonic atoms. In the superfluid phase, characterized by the spontaneous symmetry breaking of the U(1) symmetry, there is the coexistence of first and second sound. In the case of weakly-interacting repulsive bosons, we model the recent measurements of the sound velocities of 39K atoms in 2D obtained in the weakly-interacting regime and around the Berezinskii–Kosterlitz–Thouless (BKT) superfluid-to-normal transition temperature. In particular, we perform a quite accurate computation of the superfluid density and show that it is reasonably consistent with the experimental results. For superfluid attractive fermions, we calculate the first and second sound velocities across the whole BCS-BEC crossover. In the low-temperature regime, we reproduce the recent measurements of first-sound speed with 6Li atoms. We also predict that there is mixing between sound modes only in the finite-temperature BEC regime."}],"quality_controlled":"1","file_date_updated":"2023-01-24T10:56:12Z","publisher":"MDPI","article_type":"original","_id":"12154","scopus_import":"1","author":[{"full_name":"Salasnich, Luca","first_name":"Luca","last_name":"Salasnich"},{"first_name":"Alberto","last_name":"Cappellaro","orcid":"0000-0001-6110-2359","full_name":"Cappellaro, Alberto","id":"9d13b3cb-30a2-11eb-80dc-f772505e8660"},{"full_name":"Furutani, Koichiro","first_name":"Koichiro","last_name":"Furutani"},{"last_name":"Tononi","first_name":"Andrea","full_name":"Tononi, Andrea"},{"id":"4CA96FD4-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-8823-9777","full_name":"Bighin, Giacomo","first_name":"Giacomo","last_name":"Bighin"}],"issue":"10","publication_status":"published","article_processing_charge":"Yes","department":[{"_id":"MiLe"}],"date_created":"2023-01-12T12:08:31Z","title":"First and second sound in two-dimensional bosonic and fermionic superfluids","intvolume":"        14","file":[{"content_type":"application/pdf","file_name":"2022_Symmetry_Salsnich.pdf","date_updated":"2023-01-24T10:56:12Z","file_size":843723,"checksum":"9b6bd0e484834dd76d7b26e3c5fba8bd","date_created":"2023-01-24T10:56:12Z","creator":"dernst","file_id":"12361","success":1,"relation":"main_file","access_level":"open_access"}],"user_id":"3E5EF7F0-F248-11E8-B48F-1D18A9856A87","status":"public","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"date_published":"2022-10-17T00:00:00Z","type":"journal_article","publication_identifier":{"issn":["2073-8994"]},"oa":1,"language":[{"iso":"eng"}],"keyword":["Physics and Astronomy (miscellaneous)","General Mathematics","Chemistry (miscellaneous)","Computer Science (miscellaneous)"],"publication":"Symmetry","has_accepted_license":"1","oa_version":"Published Version","month":"10","article_number":"2182"}]