[{"arxiv":1,"intvolume":"        99","department":[{"_id":"MiLe"}],"publication":"Physical Review B","date_updated":"2024-02-28T13:11:54Z","author":[{"last_name":"Mentink","first_name":"Johann H","full_name":"Mentink, Johann H"},{"first_name":"Mikhail","last_name":"Katsnelson","full_name":"Katsnelson, Mikhail"},{"last_name":"Lemeshko","first_name":"Mikhail","full_name":"Lemeshko, Mikhail","orcid":"0000-0002-6990-7802","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","oa":1,"volume":99,"year":"2019","article_number":"064428","citation":{"ama":"Mentink JH, Katsnelson M, Lemeshko M. Quantum many-body dynamics of the Einstein-de Haas effect. <i>Physical Review B</i>. 2019;99(6). doi:<a href=\"https://doi.org/10.1103/PhysRevB.99.064428\">10.1103/PhysRevB.99.064428</a>","ista":"Mentink JH, Katsnelson M, Lemeshko M. 2019. Quantum many-body dynamics of the Einstein-de Haas effect. Physical Review B. 99(6), 064428.","ieee":"J. H. Mentink, M. Katsnelson, and M. Lemeshko, “Quantum many-body dynamics of the Einstein-de Haas effect,” <i>Physical Review B</i>, vol. 99, no. 6. American Physical Society, 2019.","short":"J.H. Mentink, M. Katsnelson, M. Lemeshko, Physical Review B 99 (2019).","apa":"Mentink, J. H., Katsnelson, M., &#38; Lemeshko, M. (2019). Quantum many-body dynamics of the Einstein-de Haas effect. <i>Physical Review B</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevB.99.064428\">https://doi.org/10.1103/PhysRevB.99.064428</a>","chicago":"Mentink, Johann H, Mikhail Katsnelson, and Mikhail Lemeshko. “Quantum Many-Body Dynamics of the Einstein-de Haas Effect.” <i>Physical Review B</i>. American Physical Society, 2019. <a href=\"https://doi.org/10.1103/PhysRevB.99.064428\">https://doi.org/10.1103/PhysRevB.99.064428</a>.","mla":"Mentink, Johann H., et al. “Quantum Many-Body Dynamics of the Einstein-de Haas Effect.” <i>Physical Review B</i>, vol. 99, no. 6, 064428, American Physical Society, 2019, doi:<a href=\"https://doi.org/10.1103/PhysRevB.99.064428\">10.1103/PhysRevB.99.064428</a>."},"abstract":[{"text":"In 1915, Einstein and de Haas and Barnett demonstrated that changing the magnetization of a magnetic material results in mechanical rotation and vice versa. At the microscopic level, this effect governs the transfer between electron spin and orbital angular momentum, and lattice degrees of freedom, understanding which is key for molecular magnets, nano-magneto-mechanics, spintronics, and ultrafast magnetism. Until now, the timescales of electron-to-lattice angular momentum transfer remain unclear, since modeling this process on a microscopic level requires the addition of an infinite amount of quantum angular momenta. We show that this problem can be solved by reformulating it in terms of the recently discovered angulon quasiparticles, which results in a rotationally invariant quantum many-body theory. In particular, we demonstrate that nonperturbative effects take place even if the electron-phonon coupling is weak and give rise to angular momentum transfer on femtosecond timescales.","lang":"eng"}],"_id":"6092","date_created":"2019-03-10T22:59:20Z","doi":"10.1103/PhysRevB.99.064428","main_file_link":[{"url":"https://arxiv.org/abs/1802.01638","open_access":"1"}],"scopus_import":"1","title":"Quantum many-body dynamics of the Einstein-de Haas effect","publication_status":"published","oa_version":"Preprint","article_processing_charge":"No","language":[{"iso":"eng"}],"month":"02","isi":1,"status":"public","publisher":"American Physical Society","date_published":"2019-02-01T00:00:00Z","external_id":{"arxiv":["1802.01638"],"isi":["000459223400004"]},"type":"journal_article","issue":"6","project":[{"grant_number":"P29902","call_identifier":"FWF","name":"Quantum rotations in the presence of a many-body environment","_id":"26031614-B435-11E9-9278-68D0E5697425"}],"day":"01","quality_controlled":"1"},{"language":[{"iso":"eng"}],"status":"public","isi":1,"month":"06","publisher":"American Physical Society","type":"journal_article","date_published":"2019-06-28T00:00:00Z","external_id":{"isi":["000473133600007"],"arxiv":["1903.06759"]},"issue":"6","day":"28","quality_controlled":"1","intvolume":"        99","arxiv":1,"date_updated":"2024-02-28T13:12:34Z","publication":"Physical Review A","department":[{"_id":"MiLe"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","author":[{"first_name":"Volker","last_name":"Karle","full_name":"Karle, Volker"},{"first_name":"Nicolò","last_name":"Defenu","full_name":"Defenu, Nicolò"},{"last_name":"Enss","first_name":"Tilman","full_name":"Enss, Tilman"}],"volume":99,"oa":1,"abstract":[{"lang":"eng","text":"We consider a two-component Bose gas in two dimensions at a low temperature with short-range repulsive interaction. In the coexistence phase where both components are superfluid, interspecies interactions induce a nondissipative drag between the two superfluid flows (Andreev-Bashkin effect). We show that this behavior leads to a modification of the usual Berezinskii-Kosterlitz-Thouless (BKT) transition in two dimensions. We extend the renormalization of the superfluid densities at finite temperature using the renormalization-group approach and find that the vortices of one component have a large influence on the superfluid properties of the other, mediated  by  the  nondissipative  drag.  The  extended  BKT  flow  equations  indicate  that  the  occurrence  of  the vortex unbinding transition in one of the components can induce the breakdown of superfluidity also in the other, leading to a locking phenomenon for the critical temperatures of the two gases."}],"citation":{"ama":"Karle V, Defenu N, Enss T. Coupled superfluidity of binary Bose mixtures in two dimensions. <i>Physical Review A</i>. 2019;99(6). doi:<a href=\"https://doi.org/10.1103/PhysRevA.99.063627\">10.1103/PhysRevA.99.063627</a>","ieee":"V. Karle, N. Defenu, and T. Enss, “Coupled superfluidity of binary Bose mixtures in two dimensions,” <i>Physical Review A</i>, vol. 99, no. 6. American Physical Society, 2019.","ista":"Karle V, Defenu N, Enss T. 2019. Coupled superfluidity of binary Bose mixtures in two dimensions. Physical Review A. 99(6), 063627.","mla":"Karle, Volker, et al. “Coupled Superfluidity of Binary Bose Mixtures in Two Dimensions.” <i>Physical Review A</i>, vol. 99, no. 6, 063627, American Physical Society, 2019, doi:<a href=\"https://doi.org/10.1103/PhysRevA.99.063627\">10.1103/PhysRevA.99.063627</a>.","short":"V. Karle, N. Defenu, T. Enss, Physical Review A 99 (2019).","chicago":"Karle, Volker, Nicolò Defenu, and Tilman Enss. “Coupled Superfluidity of Binary Bose Mixtures in Two Dimensions.” <i>Physical Review A</i>. American Physical Society, 2019. <a href=\"https://doi.org/10.1103/PhysRevA.99.063627\">https://doi.org/10.1103/PhysRevA.99.063627</a>.","apa":"Karle, V., Defenu, N., &#38; Enss, T. (2019). Coupled superfluidity of binary Bose mixtures in two dimensions. <i>Physical Review A</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevA.99.063627\">https://doi.org/10.1103/PhysRevA.99.063627</a>"},"year":"2019","article_number":"063627","date_created":"2019-07-14T21:59:17Z","_id":"6632","publication_identifier":{"issn":["24699926"],"eissn":["24699934"]},"scopus_import":"1","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1903.06759"}],"doi":"10.1103/PhysRevA.99.063627","article_processing_charge":"No","oa_version":"Preprint","publication_status":"published","title":"Coupled superfluidity of binary Bose mixtures in two dimensions"},{"publication_status":"published","quality_controlled":"1","title":"Room temperature control of valley coherence in bilayer WS2 exciton polaritons","oa_version":"None","article_processing_charge":"No","doi":"10.1364/cleo_at.2019.jtu2a.52","scopus_import":"1","day":"01","publication_identifier":{"isbn":["9781943580576"]},"conference":{"start_date":"2019-05-05","end_date":"2019-05-10","location":"San Jose, CA, United States","name":"CLEO: Conference on Lasers and Electro-Optics"},"_id":"6646","date_created":"2019-07-17T09:40:44Z","article_number":"paper JTu2A.52","year":"2019","citation":{"ama":"Khatoniar M, Yama N, Ghazaryan A, Guddala S, Ghaemi P, Menon V. Room temperature control of valley coherence in bilayer WS2 exciton polaritons. In: <i>CLEO: Applications and Technology</i>. Optica  Publishing Group; 2019. doi:<a href=\"https://doi.org/10.1364/cleo_at.2019.jtu2a.52\">10.1364/cleo_at.2019.jtu2a.52</a>","ieee":"M. Khatoniar, N. Yama, A. Ghazaryan, S. Guddala, P. Ghaemi, and V. Menon, “Room temperature control of valley coherence in bilayer WS2 exciton polaritons,” in <i>CLEO: Applications and Technology</i>, San Jose, CA, United States, 2019.","ista":"Khatoniar M, Yama N, Ghazaryan A, Guddala S, Ghaemi P, Menon V. 2019. Room temperature control of valley coherence in bilayer WS2 exciton polaritons. CLEO: Applications and Technology. CLEO: Conference on Lasers and Electro-Optics, paper JTu2A.52.","short":"M. Khatoniar, N. Yama, A. Ghazaryan, S. Guddala, P. Ghaemi, V. Menon, in:, CLEO: Applications and Technology, Optica  Publishing Group, 2019.","apa":"Khatoniar, M., Yama, N., Ghazaryan, A., Guddala, S., Ghaemi, P., &#38; Menon, V. (2019). Room temperature control of valley coherence in bilayer WS2 exciton polaritons. In <i>CLEO: Applications and Technology</i>. San Jose, CA, United States: Optica  Publishing Group. <a href=\"https://doi.org/10.1364/cleo_at.2019.jtu2a.52\">https://doi.org/10.1364/cleo_at.2019.jtu2a.52</a>","chicago":"Khatoniar, Mandeep, Nicholas Yama, Areg Ghazaryan, Sriram Guddala, Pouyan Ghaemi, and Vinod Menon. “Room Temperature Control of Valley Coherence in Bilayer WS2 Exciton Polaritons.” In <i>CLEO: Applications and Technology</i>. Optica  Publishing Group, 2019. <a href=\"https://doi.org/10.1364/cleo_at.2019.jtu2a.52\">https://doi.org/10.1364/cleo_at.2019.jtu2a.52</a>.","mla":"Khatoniar, Mandeep, et al. “Room Temperature Control of Valley Coherence in Bilayer WS2 Exciton Polaritons.” <i>CLEO: Applications and Technology</i>, paper JTu2A.52, Optica  Publishing Group, 2019, doi:<a href=\"https://doi.org/10.1364/cleo_at.2019.jtu2a.52\">10.1364/cleo_at.2019.jtu2a.52</a>."},"abstract":[{"text":"We demonstrate robust retention of valley coherence and its control via polariton pseudospin precession through the optical TE-TM splitting in bilayer WS2 microcavity exciton polaritons at room temperature.","lang":"eng"}],"date_published":"2019-05-01T00:00:00Z","type":"conference","publisher":"Optica  Publishing Group","author":[{"full_name":"Khatoniar, Mandeep","first_name":"Mandeep","last_name":"Khatoniar"},{"first_name":"Nicholas","last_name":"Yama","full_name":"Yama, Nicholas"},{"last_name":"Ghazaryan","first_name":"Areg","full_name":"Ghazaryan, Areg","id":"4AF46FD6-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-9666-3543"},{"full_name":"Guddala, Sriram","first_name":"Sriram","last_name":"Guddala"},{"full_name":"Ghaemi, Pouyan","last_name":"Ghaemi","first_name":"Pouyan"},{"last_name":"Menon","first_name":"Vinod","full_name":"Menon, Vinod"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","month":"05","department":[{"_id":"MiLe"}],"status":"public","publication":"CLEO: Applications and Technology","date_updated":"2023-10-17T12:14:29Z","language":[{"iso":"eng"}]},{"day":"08","quality_controlled":"1","has_accepted_license":"1","tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)"},"project":[{"call_identifier":"FWF","grant_number":"P29902","name":"Quantum rotations in the presence of a many-body environment","_id":"26031614-B435-11E9-9278-68D0E5697425"}],"issue":"2","publisher":"American Physical Society","external_id":{"isi":["000467402900001"],"arxiv":["1807.11238"]},"date_published":"2019-05-08T00:00:00Z","type":"journal_article","language":[{"iso":"eng"}],"ddc":["530"],"status":"public","month":"05","isi":1,"article_type":"original","publication_identifier":{"eissn":["2160-3308"]},"doi":"10.1103/PhysRevX.9.021026","scopus_import":"1","file_date_updated":"2020-07-14T12:47:40Z","oa_version":"Published Version","article_processing_charge":"No","title":"Attractive dipolar coupling between stacked exciton fluids","publication_status":"published","abstract":[{"text":"Dipolar coupling plays a fundamental role in the interaction between electrically or magnetically polarized species such as magnetic atoms and dipolar molecules in a gas or dipolar excitons in the solid state. Unlike Coulomb or contactlike interactions found in many atomic, molecular, and condensed-matter systems, this interaction is long-ranged and highly anisotropic, as it changes from repulsive to attractive depending on the relative positions and orientation of the dipoles. Because of this unique property, many exotic, symmetry-breaking collective states have been recently predicted for cold dipolar gases, but only a few have been experimentally detected and only in dilute atomic dipolar Bose-Einstein condensates. Here, we report on the first observation of attractive dipolar coupling between excitonic dipoles using a new design of stacked semiconductor bilayers. We show that the presence of a dipolar exciton fluid in one bilayer modifies the spatial distribution and increases the binding energy of excitonic dipoles in a vertically remote layer. The binding energy changes are explained using a many-body polaron model describing the deformation of the exciton cloud due to its interaction with a remote dipolar exciton. The surprising nonmonotonic dependence on the cloud density indicates the important role of dipolar correlations, which is unique to dense, strongly interacting dipolar solid-state systems. Our concept provides a route for the realization of dipolar lattices with strong anisotropic interactions in semiconductor systems, which open the way for the observation of theoretically predicted new and exotic collective phases, as well as for engineering and sensing their collective excitations.","lang":"eng"}],"article_number":"021026","year":"2019","citation":{"ama":"Hubert C, Baruchi Y, Mazuz-Harpaz Y, et al. Attractive dipolar coupling between stacked exciton fluids. <i>Physical Review X</i>. 2019;9(2). doi:<a href=\"https://doi.org/10.1103/PhysRevX.9.021026\">10.1103/PhysRevX.9.021026</a>","ieee":"C. Hubert <i>et al.</i>, “Attractive dipolar coupling between stacked exciton fluids,” <i>Physical Review X</i>, vol. 9, no. 2. American Physical Society, 2019.","ista":"Hubert C, Baruchi Y, Mazuz-Harpaz Y, Cohen K, Biermann K, Lemeshko M, West K, Pfeiffer L, Rapaport R, Santos P. 2019. Attractive dipolar coupling between stacked exciton fluids. Physical Review X. 9(2), 021026.","short":"C. Hubert, Y. Baruchi, Y. Mazuz-Harpaz, K. Cohen, K. Biermann, M. Lemeshko, K. West, L. Pfeiffer, R. Rapaport, P. Santos, Physical Review X 9 (2019).","chicago":"Hubert, Colin, Yifat Baruchi, Yotam Mazuz-Harpaz, Kobi Cohen, Klaus Biermann, Mikhail Lemeshko, Ken West, Loren Pfeiffer, Ronen Rapaport, and Paulo Santos. “Attractive Dipolar Coupling between Stacked Exciton Fluids.” <i>Physical Review X</i>. American Physical Society, 2019. <a href=\"https://doi.org/10.1103/PhysRevX.9.021026\">https://doi.org/10.1103/PhysRevX.9.021026</a>.","apa":"Hubert, C., Baruchi, Y., Mazuz-Harpaz, Y., Cohen, K., Biermann, K., Lemeshko, M., … Santos, P. (2019). Attractive dipolar coupling between stacked exciton fluids. <i>Physical Review X</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevX.9.021026\">https://doi.org/10.1103/PhysRevX.9.021026</a>","mla":"Hubert, Colin, et al. “Attractive Dipolar Coupling between Stacked Exciton Fluids.” <i>Physical Review X</i>, vol. 9, no. 2, 021026, American Physical Society, 2019, doi:<a href=\"https://doi.org/10.1103/PhysRevX.9.021026\">10.1103/PhysRevX.9.021026</a>."},"_id":"6786","file":[{"file_size":1193550,"date_updated":"2020-07-14T12:47:40Z","relation":"main_file","date_created":"2019-08-12T12:14:18Z","file_name":"2019_PhysReviewX_Hubert.pdf","access_level":"open_access","checksum":"065ff82ee4a1d2c3773ce4b76ff4213c","content_type":"application/pdf","file_id":"6802","creator":"dernst"}],"date_created":"2019-08-11T21:59:20Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","author":[{"full_name":"Hubert, Colin","first_name":"Colin","last_name":"Hubert"},{"full_name":"Baruchi, Yifat","last_name":"Baruchi","first_name":"Yifat"},{"full_name":"Mazuz-Harpaz, Yotam","last_name":"Mazuz-Harpaz","first_name":"Yotam"},{"last_name":"Cohen","first_name":"Kobi","full_name":"Cohen, Kobi"},{"first_name":"Klaus","last_name":"Biermann","full_name":"Biermann, Klaus"},{"first_name":"Mikhail","last_name":"Lemeshko","orcid":"0000-0002-6990-7802","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","full_name":"Lemeshko, Mikhail"},{"full_name":"West, Ken","last_name":"West","first_name":"Ken"},{"full_name":"Pfeiffer, Loren","last_name":"Pfeiffer","first_name":"Loren"},{"last_name":"Rapaport","first_name":"Ronen","full_name":"Rapaport, Ronen"},{"first_name":"Paulo","last_name":"Santos","full_name":"Santos, Paulo"}],"oa":1,"volume":9,"intvolume":"         9","arxiv":1,"publication":"Physical Review X","date_updated":"2024-02-28T13:12:48Z","department":[{"_id":"MiLe"}]},{"quality_controlled":"1","day":"15","project":[{"_id":"25681D80-B435-11E9-9278-68D0E5697425","name":"International IST Postdoc Fellowship Programme","call_identifier":"FP7","grant_number":"291734"},{"call_identifier":"FWF","grant_number":"P29902","name":"Quantum rotations in the presence of a many-body environment","_id":"26031614-B435-11E9-9278-68D0E5697425"}],"issue":"4","date_published":"2018-07-15T00:00:00Z","external_id":{"isi":["000436939100007"],"arxiv":["1712.00308"]},"type":"journal_article","publisher":"American Physical Society","status":"public","month":"07","isi":1,"language":[{"iso":"eng"}],"article_processing_charge":"No","oa_version":"Submitted Version","publication_status":"published","title":"Anyonic statistics of quantum impurities in two dimensions","doi":"10.1103/PhysRevB.98.045402","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1712.00308"}],"scopus_import":"1","_id":"195","date_created":"2018-12-11T11:45:08Z","abstract":[{"lang":"eng","text":"We demonstrate that identical impurities immersed in a two-dimensional many-particle bath can be viewed as flux-tube-charged-particle composites described by fractional statistics. In particular, we find that the bath manifests itself as an external magnetic flux tube with respect to the impurities, and hence the time-reversal symmetry is broken for the effective Hamiltonian describing the impurities. The emerging flux tube acts as a statistical gauge field after a certain critical coupling. This critical coupling corresponds to the intersection point between the quasiparticle state and the phonon wing, where the angular momentum is transferred from the impurity to the bath. This amounts to a novel configuration with emerging anyons. The proposed setup paves the way to realizing anyons using electrons interacting with superfluid helium or lattice phonons, as well as using atomic impurities in ultracold gases."}],"article_number":"045402","year":"2018","citation":{"short":"E. Yakaboylu, M. Lemeshko, Physical Review B - Condensed Matter and Materials Physics 98 (2018).","chicago":"Yakaboylu, Enderalp, and Mikhail Lemeshko. “Anyonic Statistics of Quantum Impurities in Two Dimensions.” <i>Physical Review B - Condensed Matter and Materials Physics</i>. American Physical Society, 2018. <a href=\"https://doi.org/10.1103/PhysRevB.98.045402\">https://doi.org/10.1103/PhysRevB.98.045402</a>.","apa":"Yakaboylu, E., &#38; Lemeshko, M. (2018). Anyonic statistics of quantum impurities in two dimensions. <i>Physical Review B - Condensed Matter and Materials Physics</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevB.98.045402\">https://doi.org/10.1103/PhysRevB.98.045402</a>","mla":"Yakaboylu, Enderalp, and Mikhail Lemeshko. “Anyonic Statistics of Quantum Impurities in Two Dimensions.” <i>Physical Review B - Condensed Matter and Materials Physics</i>, vol. 98, no. 4, 045402, American Physical Society, 2018, doi:<a href=\"https://doi.org/10.1103/PhysRevB.98.045402\">10.1103/PhysRevB.98.045402</a>.","ieee":"E. Yakaboylu and M. Lemeshko, “Anyonic statistics of quantum impurities in two dimensions,” <i>Physical Review B - Condensed Matter and Materials Physics</i>, vol. 98, no. 4. American Physical Society, 2018.","ista":"Yakaboylu E, Lemeshko M. 2018. Anyonic statistics of quantum impurities in two dimensions. Physical Review B - Condensed Matter and Materials Physics. 98(4), 045402.","ama":"Yakaboylu E, Lemeshko M. Anyonic statistics of quantum impurities in two dimensions. <i>Physical Review B - Condensed Matter and Materials Physics</i>. 2018;98(4). doi:<a href=\"https://doi.org/10.1103/PhysRevB.98.045402\">10.1103/PhysRevB.98.045402</a>"},"oa":1,"volume":98,"user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","author":[{"last_name":"Yakaboylu","first_name":"Enderalp","full_name":"Yakaboylu, Enderalp","id":"38CB71F6-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-5973-0874"},{"first_name":"Mikhail","last_name":"Lemeshko","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-6990-7802","full_name":"Lemeshko, Mikhail"}],"publication":"Physical Review B - Condensed Matter and Materials Physics","ec_funded":1,"date_updated":"2023-09-08T13:22:57Z","department":[{"_id":"MiLe"}],"intvolume":"        98","arxiv":1},{"issue":"25","project":[{"name":"International IST Postdoc Fellowship Programme","_id":"25681D80-B435-11E9-9278-68D0E5697425","grant_number":"291734","call_identifier":"FP7"},{"grant_number":"P29902","call_identifier":"FWF","_id":"26031614-B435-11E9-9278-68D0E5697425","name":"Quantum rotations in the presence of a many-body environment"}],"quality_controlled":"1","day":"17","isi":1,"month":"12","status":"public","language":[{"iso":"eng"}],"type":"journal_article","date_published":"2018-12-17T00:00:00Z","external_id":{"isi":["000454178600009"],"arxiv":["1809.00222"]},"publisher":"American Physical Society","date_created":"2019-01-06T22:59:12Z","_id":"5794","citation":{"apa":"Yakaboylu, E., Shkolnikov, M., &#38; Lemeshko, M. (2018). Quantum groups as hidden symmetries of quantum impurities. <i>Physical Review Letters</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevLett.121.255302\">https://doi.org/10.1103/PhysRevLett.121.255302</a>","short":"E. Yakaboylu, M. Shkolnikov, M. Lemeshko, Physical Review Letters 121 (2018).","chicago":"Yakaboylu, Enderalp, Mikhail Shkolnikov, and Mikhail Lemeshko. “Quantum Groups as Hidden Symmetries of Quantum Impurities.” <i>Physical Review Letters</i>. American Physical Society, 2018. <a href=\"https://doi.org/10.1103/PhysRevLett.121.255302\">https://doi.org/10.1103/PhysRevLett.121.255302</a>.","mla":"Yakaboylu, Enderalp, et al. “Quantum Groups as Hidden Symmetries of Quantum Impurities.” <i>Physical Review Letters</i>, vol. 121, no. 25, 255302, American Physical Society, 2018, doi:<a href=\"https://doi.org/10.1103/PhysRevLett.121.255302\">10.1103/PhysRevLett.121.255302</a>.","ama":"Yakaboylu E, Shkolnikov M, Lemeshko M. Quantum groups as hidden symmetries of quantum impurities. <i>Physical Review Letters</i>. 2018;121(25). doi:<a href=\"https://doi.org/10.1103/PhysRevLett.121.255302\">10.1103/PhysRevLett.121.255302</a>","ista":"Yakaboylu E, Shkolnikov M, Lemeshko M. 2018. Quantum groups as hidden symmetries of quantum impurities. Physical Review Letters. 121(25), 255302.","ieee":"E. Yakaboylu, M. Shkolnikov, and M. Lemeshko, “Quantum groups as hidden symmetries of quantum impurities,” <i>Physical Review Letters</i>, vol. 121, no. 25. American Physical Society, 2018."},"year":"2018","article_number":"255302","abstract":[{"text":"We present an approach to interacting quantum many-body systems based on the notion of quantum groups, also known as q-deformed Lie algebras. In particular, we show that, if the symmetry of a free quantum particle corresponds to a Lie group G, in the presence of a many-body environment this particle can be described by a deformed group, Gq. Crucially, the single deformation parameter, q, contains all the information about the many-particle interactions in the system. We exemplify our approach by considering a quantum rotor interacting with a bath of bosons, and demonstrate that extracting the value of q from closed-form solutions in the perturbative regime allows one to predict the behavior of the system for arbitrary values of the impurity-bath coupling strength, in good agreement with nonperturbative calculations. Furthermore, the value of the deformation parameter allows one to predict at which coupling strengths rotor-bath interactions result in a formation of a stable quasiparticle. The approach based on quantum groups does not only allow for a drastic simplification of impurity problems, but also provides valuable insights into hidden symmetries of interacting many-particle systems.","lang":"eng"}],"title":"Quantum groups as hidden symmetries of quantum impurities","publication_status":"published","oa_version":"Preprint","article_processing_charge":"No","scopus_import":"1","main_file_link":[{"url":"https://arxiv.org/abs/1809.00222","open_access":"1"}],"doi":"10.1103/PhysRevLett.121.255302","publication_identifier":{"issn":["00319007"]},"article_type":"original","department":[{"_id":"MiLe"}],"date_updated":"2023-09-15T12:09:06Z","ec_funded":1,"publication":"Physical Review Letters","arxiv":1,"intvolume":"       121","volume":121,"oa":1,"author":[{"id":"38CB71F6-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-5973-0874","full_name":"Yakaboylu, Enderalp","first_name":"Enderalp","last_name":"Yakaboylu"},{"first_name":"Mikhail","last_name":"Shkolnikov","id":"35084A62-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-4310-178X","full_name":"Shkolnikov, Mikhail"},{"full_name":"Lemeshko, Mikhail","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-6990-7802","last_name":"Lemeshko","first_name":"Mikhail"}],"user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1"},{"project":[{"call_identifier":"FP7","grant_number":"291734","_id":"25681D80-B435-11E9-9278-68D0E5697425","name":"International IST Postdoc Fellowship Programme"},{"name":"Analysis of quantum many-body systems","_id":"25C6DC12-B435-11E9-9278-68D0E5697425","grant_number":"694227","call_identifier":"H2020"}],"issue":"22","quality_controlled":"1","day":"12","status":"public","isi":1,"month":"12","language":[{"iso":"eng"}],"type":"journal_article","external_id":{"isi":["000452992700008"],"arxiv":["1809.01204"]},"date_published":"2018-12-12T00:00:00Z","publisher":"American Physical Society","date_created":"2019-02-14T10:37:09Z","_id":"5983","abstract":[{"text":"We study a quantum impurity possessing both translational and internal rotational degrees of freedom interacting with a bosonic bath. Such a system corresponds to a “rotating polaron,” which can be used to model, e.g., a rotating molecule immersed in an ultracold Bose gas or superfluid helium. We derive the Hamiltonian of the rotating polaron and study its spectrum in the weak- and strong-coupling regimes using a combination of variational, diagrammatic, and mean-field approaches. We reveal how the coupling between linear and angular momenta affects stable quasiparticle states, and demonstrate that internal rotation leads to an enhanced self-localization in the translational degrees of freedom.","lang":"eng"}],"citation":{"mla":"Yakaboylu, Enderalp, et al. “Theory of the Rotating Polaron: Spectrum and Self-Localization.” <i>Physical Review B</i>, vol. 98, no. 22, 224506, American Physical Society, 2018, doi:<a href=\"https://doi.org/10.1103/physrevb.98.224506\">10.1103/physrevb.98.224506</a>.","short":"E. Yakaboylu, B. Midya, A. Deuchert, N.K. Leopold, M. Lemeshko, Physical Review B 98 (2018).","apa":"Yakaboylu, E., Midya, B., Deuchert, A., Leopold, N. K., &#38; Lemeshko, M. (2018). Theory of the rotating polaron: Spectrum and self-localization. <i>Physical Review B</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physrevb.98.224506\">https://doi.org/10.1103/physrevb.98.224506</a>","chicago":"Yakaboylu, Enderalp, Bikashkali Midya, Andreas Deuchert, Nikolai K Leopold, and Mikhail Lemeshko. “Theory of the Rotating Polaron: Spectrum and Self-Localization.” <i>Physical Review B</i>. American Physical Society, 2018. <a href=\"https://doi.org/10.1103/physrevb.98.224506\">https://doi.org/10.1103/physrevb.98.224506</a>.","ama":"Yakaboylu E, Midya B, Deuchert A, Leopold NK, Lemeshko M. Theory of the rotating polaron: Spectrum and self-localization. <i>Physical Review B</i>. 2018;98(22). doi:<a href=\"https://doi.org/10.1103/physrevb.98.224506\">10.1103/physrevb.98.224506</a>","ista":"Yakaboylu E, Midya B, Deuchert A, Leopold NK, Lemeshko M. 2018. Theory of the rotating polaron: Spectrum and self-localization. Physical Review B. 98(22), 224506.","ieee":"E. Yakaboylu, B. Midya, A. Deuchert, N. K. Leopold, and M. Lemeshko, “Theory of the rotating polaron: Spectrum and self-localization,” <i>Physical Review B</i>, vol. 98, no. 22. American Physical Society, 2018."},"year":"2018","article_number":"224506","oa_version":"Preprint","article_processing_charge":"No","title":"Theory of the rotating polaron: Spectrum and self-localization","publication_status":"published","publication_identifier":{"issn":["2469-9950"],"eissn":["2469-9969"]},"scopus_import":"1","doi":"10.1103/physrevb.98.224506","main_file_link":[{"url":"https://arxiv.org/abs/1809.01204","open_access":"1"}],"date_updated":"2023-09-19T14:29:03Z","ec_funded":1,"publication":"Physical Review B","department":[{"_id":"MiLe"},{"_id":"RoSe"}],"intvolume":"        98","arxiv":1,"volume":98,"oa":1,"user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","author":[{"id":"38CB71F6-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-5973-0874","full_name":"Yakaboylu, Enderalp","first_name":"Enderalp","last_name":"Yakaboylu"},{"first_name":"Bikashkali","last_name":"Midya","id":"456187FC-F248-11E8-B48F-1D18A9856A87","full_name":"Midya, Bikashkali"},{"last_name":"Deuchert","first_name":"Andreas","full_name":"Deuchert, Andreas","orcid":"0000-0003-3146-6746","id":"4DA65CD0-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Leopold, Nikolai K","id":"4BC40BEC-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-0495-6822","last_name":"Leopold","first_name":"Nikolai K"},{"last_name":"Lemeshko","first_name":"Mikhail","full_name":"Lemeshko, Mikhail","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-6990-7802"}]},{"external_id":{"isi":["000447468400008"],"arxiv":["1803.07990"]},"date_published":"2018-10-16T00:00:00Z","type":"journal_article","publisher":"American Physical Society","status":"public","month":"10","isi":1,"language":[{"iso":"eng"}],"quality_controlled":"1","day":"16","project":[{"grant_number":"P29902","call_identifier":"FWF","_id":"26031614-B435-11E9-9278-68D0E5697425","name":"Quantum rotations in the presence of a many-body environment"}],"issue":"16","oa":1,"related_material":{"link":[{"relation":"press_release","description":"News on IST Homepage","url":"https://ist.ac.at/en/news/description-of-rotating-molecules-made-easy/"}]},"volume":121,"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","author":[{"first_name":"Giacomo","last_name":"Bighin","orcid":"0000-0001-8823-9777","id":"4CA96FD4-F248-11E8-B48F-1D18A9856A87","full_name":"Bighin, Giacomo"},{"full_name":"Tscherbul, Timur","first_name":"Timur","last_name":"Tscherbul"},{"full_name":"Lemeshko, Mikhail","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-6990-7802","last_name":"Lemeshko","first_name":"Mikhail"}],"publication":"Physical Review Letters","date_updated":"2024-02-28T13:15:09Z","department":[{"_id":"MiLe"}],"intvolume":"       121","arxiv":1,"article_processing_charge":"No","oa_version":"Preprint","publication_status":"published","title":"Diagrammatic Monte Carlo approach to angular momentum in quantum many-particle systems","doi":"10.1103/physrevlett.121.165301","main_file_link":[{"url":"https://arxiv.org/abs/1803.07990","open_access":"1"}],"scopus_import":"1","_id":"6339","date_created":"2019-04-17T10:53:38Z","abstract":[{"lang":"eng","text":"We introduce a diagrammatic Monte Carlo approach to angular momentum properties of quantum many-particle systems possessing a macroscopic number of degrees of freedom. The treatment is based on a diagrammatic expansion that merges the usual Feynman diagrams with the angular momentum diagrams known from atomic and nuclear structure theory, thereby incorporating the non-Abelian algebra inherent to quantum rotations. Our approach is applicable at arbitrary coupling, is free of systematic errors and of finite-size effects, and naturally provides access to the impurity Green function. We exemplify the technique by obtaining an all-coupling solution of the angulon model; however, the method is quite general and can be applied to a broad variety of systems in which particles exchange quantum angular momentum with their many-body environment."}],"year":"2018","article_number":"165301","citation":{"ieee":"G. Bighin, T. Tscherbul, and M. Lemeshko, “Diagrammatic Monte Carlo approach to angular momentum in quantum many-particle systems,” <i>Physical Review Letters</i>, vol. 121, no. 16. American Physical Society, 2018.","ista":"Bighin G, Tscherbul T, Lemeshko M. 2018. Diagrammatic Monte Carlo approach to angular momentum in quantum many-particle systems. Physical Review Letters. 121(16), 165301.","ama":"Bighin G, Tscherbul T, Lemeshko M. Diagrammatic Monte Carlo approach to angular momentum in quantum many-particle systems. <i>Physical Review Letters</i>. 2018;121(16). doi:<a href=\"https://doi.org/10.1103/physrevlett.121.165301\">10.1103/physrevlett.121.165301</a>","mla":"Bighin, Giacomo, et al. “Diagrammatic Monte Carlo Approach to Angular Momentum in Quantum Many-Particle Systems.” <i>Physical Review Letters</i>, vol. 121, no. 16, 165301, American Physical Society, 2018, doi:<a href=\"https://doi.org/10.1103/physrevlett.121.165301\">10.1103/physrevlett.121.165301</a>.","apa":"Bighin, G., Tscherbul, T., &#38; Lemeshko, M. (2018). Diagrammatic Monte Carlo approach to angular momentum in quantum many-particle systems. <i>Physical Review Letters</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physrevlett.121.165301\">https://doi.org/10.1103/physrevlett.121.165301</a>","short":"G. Bighin, T. Tscherbul, M. Lemeshko, Physical Review Letters 121 (2018).","chicago":"Bighin, Giacomo, Timur Tscherbul, and Mikhail Lemeshko. “Diagrammatic Monte Carlo Approach to Angular Momentum in Quantum Many-Particle Systems.” <i>Physical Review Letters</i>. American Physical Society, 2018. <a href=\"https://doi.org/10.1103/physrevlett.121.165301\">https://doi.org/10.1103/physrevlett.121.165301</a>."}},{"quality_controlled":"1","day":"18","project":[{"grant_number":"291734","call_identifier":"FP7","_id":"25681D80-B435-11E9-9278-68D0E5697425","name":"International IST Postdoc Fellowship Programme"}],"issue":"4","type":"journal_article","date_published":"2018-04-18T00:00:00Z","external_id":{"isi":["000430296800008"],"arxiv":["1801.06892"]},"publisher":"American Physical Society","publist_id":"7587","status":"public","isi":1,"month":"04","language":[{"iso":"eng"}],"article_processing_charge":"No","oa_version":"Submitted Version","title":"Two-photon processes based on quantum commutators","publication_status":"published","scopus_import":"1","doi":"10.1103/PhysRevA.97.043842","main_file_link":[{"url":"https://arxiv.org/abs/1801.06892","open_access":"1"}],"date_created":"2018-12-11T11:45:40Z","_id":"294","abstract":[{"text":"We developed a method to calculate two-photon processes in quantum mechanics that replaces the infinite summation over the intermediate states by a perturbation expansion. This latter consists of a series of commutators that involve position, momentum, and Hamiltonian quantum operators. We analyzed several single- and many-particle cases for which a closed-form solution to the perturbation expansion exists, as well as more complicated cases for which a solution is found by convergence. Throughout the article, Rayleigh and Raman scattering are taken as examples of two-photon processes. The present method provides a clear distinction between the Thomson scattering, regarded as classical scattering, and quantum contributions. Such a distinction lets us derive general results concerning light scattering. Finally, possible extensions to the developed formalism are discussed.","lang":"eng"}],"citation":{"chicago":"Fratini, Filippo, Laleh Safari, Pedro Amaro, and José Santos. “Two-Photon Processes Based on Quantum Commutators.” <i>Physical Review A - Atomic, Molecular, and Optical Physics</i>. American Physical Society, 2018. <a href=\"https://doi.org/10.1103/PhysRevA.97.043842\">https://doi.org/10.1103/PhysRevA.97.043842</a>.","short":"F. Fratini, L. Safari, P. Amaro, J. Santos, Physical Review A - Atomic, Molecular, and Optical Physics 97 (2018).","apa":"Fratini, F., Safari, L., Amaro, P., &#38; Santos, J. (2018). Two-photon processes based on quantum commutators. <i>Physical Review A - Atomic, Molecular, and Optical Physics</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevA.97.043842\">https://doi.org/10.1103/PhysRevA.97.043842</a>","mla":"Fratini, Filippo, et al. “Two-Photon Processes Based on Quantum Commutators.” <i>Physical Review A - Atomic, Molecular, and Optical Physics</i>, vol. 97, no. 4, American Physical Society, 2018, doi:<a href=\"https://doi.org/10.1103/PhysRevA.97.043842\">10.1103/PhysRevA.97.043842</a>.","ista":"Fratini F, Safari L, Amaro P, Santos J. 2018. Two-photon processes based on quantum commutators. Physical Review A - Atomic, Molecular, and Optical Physics. 97(4).","ieee":"F. Fratini, L. Safari, P. Amaro, and J. Santos, “Two-photon processes based on quantum commutators,” <i>Physical Review A - Atomic, Molecular, and Optical Physics</i>, vol. 97, no. 4. American Physical Society, 2018.","ama":"Fratini F, Safari L, Amaro P, Santos J. Two-photon processes based on quantum commutators. <i>Physical Review A - Atomic, Molecular, and Optical Physics</i>. 2018;97(4). doi:<a href=\"https://doi.org/10.1103/PhysRevA.97.043842\">10.1103/PhysRevA.97.043842</a>"},"year":"2018","volume":97,"oa":1,"user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","author":[{"full_name":"Fratini, Filippo","first_name":"Filippo","last_name":"Fratini"},{"full_name":"Safari, Laleh","id":"3C325E5E-F248-11E8-B48F-1D18A9856A87","last_name":"Safari","first_name":"Laleh"},{"last_name":"Amaro","first_name":"Pedro","full_name":"Amaro, Pedro"},{"full_name":"Santos, José","last_name":"Santos","first_name":"José"}],"date_updated":"2023-09-19T10:17:56Z","ec_funded":1,"publication":"Physical Review A - Atomic, Molecular, and Optical Physics","department":[{"_id":"MiLe"}],"intvolume":"        97","arxiv":1},{"project":[{"grant_number":"P29902","call_identifier":"FWF","name":"Quantum rotations in the presence of a many-body environment","_id":"26031614-B435-11E9-9278-68D0E5697425"},{"name":"International IST Doctoral Program","_id":"2564DBCA-B435-11E9-9278-68D0E5697425","grant_number":"665385","call_identifier":"H2020"}],"issue":"10","day":"14","quality_controlled":"1","language":[{"iso":"eng"}],"status":"public","publist_id":"7408","month":"03","isi":1,"publisher":"AIP Publishing","external_id":{"arxiv":["1711.09904"],"isi":["000427517200065"]},"date_published":"2018-03-14T00:00:00Z","type":"journal_article","abstract":[{"lang":"eng","text":"Recently it was shown that a molecule rotating in a quantum solvent can be described in terms of the “angulon” quasiparticle [M. Lemeshko, Phys. Rev. Lett. 118, 095301 (2017)]. Here we extend the angulon theory to the case of molecules possessing an additional spin-1/2 degree of freedom and study the behavior of the system in the presence of a static magnetic field. We show that exchange of angular momentum between the molecule and the solvent can be altered by the field, even though the solvent itself is non-magnetic. In particular, we demonstrate a possibility to control resonant emission of phonons with a given angular momentum using a magnetic field."}],"article_number":"104307","year":"2018","citation":{"ista":"Rzadkowski W, Lemeshko M. 2018. Effect of a magnetic field on molecule–solvent angular momentum transfer. The Journal of Chemical Physics. 148(10), 104307.","ieee":"W. Rzadkowski and M. Lemeshko, “Effect of a magnetic field on molecule–solvent angular momentum transfer,” <i>The Journal of Chemical Physics</i>, vol. 148, no. 10. AIP Publishing, 2018.","ama":"Rzadkowski W, Lemeshko M. Effect of a magnetic field on molecule–solvent angular momentum transfer. <i>The Journal of Chemical Physics</i>. 2018;148(10). doi:<a href=\"https://doi.org/10.1063/1.5017591\">10.1063/1.5017591</a>","mla":"Rzadkowski, Wojciech, and Mikhail Lemeshko. “Effect of a Magnetic Field on Molecule–Solvent Angular Momentum Transfer.” <i>The Journal of Chemical Physics</i>, vol. 148, no. 10, 104307, AIP Publishing, 2018, doi:<a href=\"https://doi.org/10.1063/1.5017591\">10.1063/1.5017591</a>.","chicago":"Rzadkowski, Wojciech, and Mikhail Lemeshko. “Effect of a Magnetic Field on Molecule–Solvent Angular Momentum Transfer.” <i>The Journal of Chemical Physics</i>. AIP Publishing, 2018. <a href=\"https://doi.org/10.1063/1.5017591\">https://doi.org/10.1063/1.5017591</a>.","short":"W. Rzadkowski, M. Lemeshko, The Journal of Chemical Physics 148 (2018).","apa":"Rzadkowski, W., &#38; Lemeshko, M. (2018). Effect of a magnetic field on molecule–solvent angular momentum transfer. <i>The Journal of Chemical Physics</i>. AIP Publishing. <a href=\"https://doi.org/10.1063/1.5017591\">https://doi.org/10.1063/1.5017591</a>"},"_id":"415","date_created":"2018-12-11T11:46:21Z","article_type":"original","acknowledgement":"We acknowledge insightful discussions with Giacomo Bighin, Igor Cherepanov, Johan Mentink, and Enderalp Yakaboylu. This work was supported by the Austrian Science Fund (FWF), Project No. P29902-N27. W.R. was supported by the Polish Ministry of Science and Higher Education Grant No. MNISW/2016/DIR/285/NN and by the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie Grant Agreement No. 665385.\r\n","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1711.09904"}],"doi":"10.1063/1.5017591","scopus_import":"1","article_processing_charge":"No","oa_version":"Preprint","title":"Effect of a magnetic field on molecule–solvent angular momentum transfer","publication_status":"published","intvolume":"       148","arxiv":1,"publication":"The Journal of Chemical Physics","date_updated":"2024-02-28T13:01:59Z","ec_funded":1,"department":[{"_id":"MiLe"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","author":[{"full_name":"Rzadkowski, Wojciech","id":"48C55298-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-1106-4419","last_name":"Rzadkowski","first_name":"Wojciech"},{"first_name":"Mikhail","last_name":"Lemeshko","orcid":"0000-0002-6990-7802","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","full_name":"Lemeshko, Mikhail"}],"oa":1,"related_material":{"record":[{"id":"10759","status":"public","relation":"dissertation_contains"}]},"volume":148},{"volume":121,"oa":1,"author":[{"id":"4CA96FD4-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-8823-9777","full_name":"Bighin, Giacomo","first_name":"Giacomo","last_name":"Bighin"},{"last_name":"Tscherbul","first_name":"Timur","full_name":"Tscherbul, Timur"},{"orcid":"0000-0002-6990-7802","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","full_name":"Lemeshko, Mikhail","first_name":"Mikhail","last_name":"Lemeshko"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","department":[{"_id":"MiLe"}],"date_updated":"2024-02-28T13:14:53Z","publication":"Physical Review Letters","arxiv":1,"intvolume":"       121","publication_status":"published","title":"Diagrammatic Monte Carlo approach to rotating molecular impurities","oa_version":"Preprint","article_processing_charge":"No","scopus_import":"1","doi":"10.1103/PhysRevLett.121.165301","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1803.07990"}],"date_created":"2018-12-11T11:46:22Z","_id":"417","citation":{"apa":"Bighin, G., Tscherbul, T., &#38; Lemeshko, M. (2018). Diagrammatic Monte Carlo approach to rotating molecular impurities. <i>Physical Review Letters</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevLett.121.165301\">https://doi.org/10.1103/PhysRevLett.121.165301</a>","chicago":"Bighin, Giacomo, Timur Tscherbul, and Mikhail Lemeshko. “Diagrammatic Monte Carlo Approach to Rotating Molecular Impurities.” <i>Physical Review Letters</i>. American Physical Society, 2018. <a href=\"https://doi.org/10.1103/PhysRevLett.121.165301\">https://doi.org/10.1103/PhysRevLett.121.165301</a>.","short":"G. Bighin, T. Tscherbul, M. Lemeshko, Physical Review Letters 121 (2018).","mla":"Bighin, Giacomo, et al. “Diagrammatic Monte Carlo Approach to Rotating Molecular Impurities.” <i>Physical Review Letters</i>, vol. 121, no. 16, 165301, American Physical Society, 2018, doi:<a href=\"https://doi.org/10.1103/PhysRevLett.121.165301\">10.1103/PhysRevLett.121.165301</a>.","ista":"Bighin G, Tscherbul T, Lemeshko M. 2018. Diagrammatic Monte Carlo approach to rotating molecular impurities. Physical Review Letters. 121(16), 165301.","ieee":"G. Bighin, T. Tscherbul, and M. Lemeshko, “Diagrammatic Monte Carlo approach to rotating molecular impurities,” <i>Physical Review Letters</i>, vol. 121, no. 16. American Physical Society, 2018.","ama":"Bighin G, Tscherbul T, Lemeshko M. Diagrammatic Monte Carlo approach to rotating molecular impurities. <i>Physical Review Letters</i>. 2018;121(16). doi:<a href=\"https://doi.org/10.1103/PhysRevLett.121.165301\">10.1103/PhysRevLett.121.165301</a>"},"article_number":"165301","year":"2018","abstract":[{"lang":"eng","text":"We introduce a Diagrammatic Monte Carlo (DiagMC) approach to complex molecular impurities with rotational degrees of freedom interacting with a many-particle environment. The treatment is based on the diagrammatic expansion that merges the usual Feynman diagrams with the angular momentum diagrams known from atomic and nuclear structure theory, thereby incorporating the non-Abelian algebra inherent to quantum rotations. Our approach works at arbitrary coupling, is free of systematic errors and of finite size effects, and naturally provides access to the impurity Green function. We exemplify the technique by obtaining an all-coupling solution of the angulon model, however, the method is quite general and can be applied to a broad variety of quantum impurities possessing angular momentum degrees of freedom. "}],"type":"journal_article","external_id":{"arxiv":["1803.07990"]},"date_published":"2018-10-16T00:00:00Z","publisher":"American Physical Society","month":"10","publist_id":"8025","status":"public","language":[{"iso":"eng"}],"quality_controlled":"1","day":"16","issue":"16","project":[{"name":"Quantum rotations in the presence of a many-body environment","_id":"26031614-B435-11E9-9278-68D0E5697425","grant_number":"P29902","call_identifier":"FWF"}]},{"quality_controlled":"1","day":"10","page":"1840022","issue":"17","type":"journal_article","date_published":"2018-07-10T00:00:00Z","external_id":{"isi":["000438217300007"]},"publisher":"World Scientific Publishing","publist_id":"7402","status":"public","isi":1,"month":"07","language":[{"iso":"eng"}],"oa_version":"Preprint","article_processing_charge":"No","publication_status":"published","title":"Renormalization of the superfluid density in the two-dimensional BCS-BEC crossover","scopus_import":"1","main_file_link":[{"url":"https://arxiv.org/abs/1710.11171","open_access":"1"}],"doi":"10.1142/S0217979218400222","date_created":"2018-12-11T11:46:22Z","_id":"420","abstract":[{"lang":"eng","text":"We analyze the theoretical derivation of the beyond-mean-field equation of state for two-dimensional gas of dilute, ultracold alkali-metal atoms in the Bardeen–Cooper–Schrieffer (BCS) to Bose–Einstein condensate (BEC) crossover. We show that at zero temperature our theory — considering Gaussian fluctuations on top of the mean-field equation of state — is in very good agreement with experimental data. Subsequently, we investigate the superfluid density at finite temperature and its renormalization due to the proliferation of vortex–antivortex pairs. By doing so, we determine the Berezinskii–Kosterlitz–Thouless (BKT) critical temperature — at which the renormalized superfluid density jumps to zero — as a function of the inter-atomic potential strength. We find that the Nelson–Kosterlitz criterion overestimates the BKT temperature with respect to the renormalization group equations, this effect being particularly relevant in the intermediate regime of the crossover."}],"citation":{"short":"G. Bighin, L. Salasnich, International Journal of Modern Physics B 32 (2018) 1840022.","apa":"Bighin, G., &#38; Salasnich, L. (2018). Renormalization of the superfluid density in the two-dimensional BCS-BEC crossover. <i>International Journal of Modern Physics B</i>. World Scientific Publishing. <a href=\"https://doi.org/10.1142/S0217979218400222\">https://doi.org/10.1142/S0217979218400222</a>","chicago":"Bighin, Giacomo, and Luca Salasnich. “Renormalization of the Superfluid Density in the Two-Dimensional BCS-BEC Crossover.” <i>International Journal of Modern Physics B</i>. World Scientific Publishing, 2018. <a href=\"https://doi.org/10.1142/S0217979218400222\">https://doi.org/10.1142/S0217979218400222</a>.","mla":"Bighin, Giacomo, and Luca Salasnich. “Renormalization of the Superfluid Density in the Two-Dimensional BCS-BEC Crossover.” <i>International Journal of Modern Physics B</i>, vol. 32, no. 17, World Scientific Publishing, 2018, p. 1840022, doi:<a href=\"https://doi.org/10.1142/S0217979218400222\">10.1142/S0217979218400222</a>.","ieee":"G. Bighin and L. Salasnich, “Renormalization of the superfluid density in the two-dimensional BCS-BEC crossover,” <i>International Journal of Modern Physics B</i>, vol. 32, no. 17. World Scientific Publishing, p. 1840022, 2018.","ista":"Bighin G, Salasnich L. 2018. Renormalization of the superfluid density in the two-dimensional BCS-BEC crossover. International Journal of Modern Physics B. 32(17), 1840022.","ama":"Bighin G, Salasnich L. Renormalization of the superfluid density in the two-dimensional BCS-BEC crossover. <i>International Journal of Modern Physics B</i>. 2018;32(17):1840022. doi:<a href=\"https://doi.org/10.1142/S0217979218400222\">10.1142/S0217979218400222</a>"},"year":"2018","volume":32,"oa":1,"user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","author":[{"orcid":"0000-0001-8823-9777","id":"4CA96FD4-F248-11E8-B48F-1D18A9856A87","full_name":"Bighin, Giacomo","first_name":"Giacomo","last_name":"Bighin"},{"full_name":"Salasnich, Luca","first_name":"Luca","last_name":"Salasnich"}],"date_updated":"2023-09-18T08:09:59Z","publication":"International Journal of Modern Physics B","department":[{"_id":"MiLe"}],"intvolume":"        32"},{"oa":1,"volume":97,"author":[{"full_name":"Amaro, Pedro","first_name":"Pedro","last_name":"Amaro"},{"last_name":"Loureiro","first_name":"Ulisses","full_name":"Loureiro, Ulisses"},{"first_name":"Laleh","last_name":"Safari","id":"3C325E5E-F248-11E8-B48F-1D18A9856A87","full_name":"Safari, Laleh"},{"full_name":"Fratini, Filippo","first_name":"Filippo","last_name":"Fratini"},{"full_name":"Indelicato, Paul","first_name":"Paul","last_name":"Indelicato"},{"last_name":"Stöhlker","first_name":"Thomas","full_name":"Stöhlker, Thomas"},{"first_name":"José","last_name":"Santos","full_name":"Santos, José"}],"user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","department":[{"_id":"MiLe"}],"publication":" Physical Review A - Atomic, Molecular, and Optical Physics","date_updated":"2023-09-15T12:09:35Z","ec_funded":1,"arxiv":1,"intvolume":"        97","title":"Quantum interference in laser spectroscopy of highly charged lithiumlike ions","publication_status":"published","article_processing_charge":"No","oa_version":"Preprint","doi":"10.1103/PhysRevA.97.022510","main_file_link":[{"url":"https://arxiv.org/abs/1802.07920","open_access":"1"}],"scopus_import":"1","article_type":"original","acknowledgement":"This work was funded by the Portuguese Fundação para a Ciência e a Tecnologia (FCT/MCTES/PIDDAC) under Grant No. UID/FIS/04559/2013 (LIBPhys). P.A. acknowledges the support of the FCT, under Contract No. SFRH/BPD/92329/2013. L.S. acknowledges financial support from the People Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme (FP7/2007-2013) under REA Grant Agreement No. (291734). Laboratoire Kastler Brossel (LKB) is “Unité Mixte de Recherche de Sorbonne Université, de ENS-PSL Research University, du Collège de France et du CNRS No. 8552.” APPENDIX:\r\n","_id":"427","date_created":"2018-12-11T11:46:25Z","year":"2018","article_number":"022510","citation":{"chicago":"Amaro, Pedro, Ulisses Loureiro, Laleh Safari, Filippo Fratini, Paul Indelicato, Thomas Stöhlker, and José Santos. “Quantum Interference in Laser Spectroscopy of Highly Charged Lithiumlike Ions.” <i> Physical Review A - Atomic, Molecular, and Optical Physics</i>. American Physical Society, 2018. <a href=\"https://doi.org/10.1103/PhysRevA.97.022510\">https://doi.org/10.1103/PhysRevA.97.022510</a>.","short":"P. Amaro, U. Loureiro, L. Safari, F. Fratini, P. Indelicato, T. Stöhlker, J. Santos,  Physical Review A - Atomic, Molecular, and Optical Physics 97 (2018).","apa":"Amaro, P., Loureiro, U., Safari, L., Fratini, F., Indelicato, P., Stöhlker, T., &#38; Santos, J. (2018). Quantum interference in laser spectroscopy of highly charged lithiumlike ions. <i> Physical Review A - Atomic, Molecular, and Optical Physics</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevA.97.022510\">https://doi.org/10.1103/PhysRevA.97.022510</a>","mla":"Amaro, Pedro, et al. “Quantum Interference in Laser Spectroscopy of Highly Charged Lithiumlike Ions.” <i> Physical Review A - Atomic, Molecular, and Optical Physics</i>, vol. 97, no. 2, 022510, American Physical Society, 2018, doi:<a href=\"https://doi.org/10.1103/PhysRevA.97.022510\">10.1103/PhysRevA.97.022510</a>.","ama":"Amaro P, Loureiro U, Safari L, et al. Quantum interference in laser spectroscopy of highly charged lithiumlike ions. <i> Physical Review A - Atomic, Molecular, and Optical Physics</i>. 2018;97(2). doi:<a href=\"https://doi.org/10.1103/PhysRevA.97.022510\">10.1103/PhysRevA.97.022510</a>","ista":"Amaro P, Loureiro U, Safari L, Fratini F, Indelicato P, Stöhlker T, Santos J. 2018. Quantum interference in laser spectroscopy of highly charged lithiumlike ions.  Physical Review A - Atomic, Molecular, and Optical Physics. 97(2), 022510.","ieee":"P. Amaro <i>et al.</i>, “Quantum interference in laser spectroscopy of highly charged lithiumlike ions,” <i> Physical Review A - Atomic, Molecular, and Optical Physics</i>, vol. 97, no. 2. American Physical Society, 2018."},"abstract":[{"lang":"eng","text":"We investigate the quantum interference induced shifts between energetically close states in highly charged ions, with the energy structure being observed by laser spectroscopy. In this work, we focus on hyperfine states of lithiumlike heavy-Z isotopes and quantify how much quantum interference changes the observed transition frequencies. The process of photon excitation and subsequent photon decay for the transition 2s→2p→2s is implemented with fully relativistic and full-multipole frameworks, which are relevant for such relativistic atomic systems. We consider the isotopes Pb79+207 and Bi80+209 due to experimental interest, as well as other examples of isotopes with lower Z, namely Pr56+141 and Ho64+165. We conclude that quantum interference can induce shifts up to 11% of the linewidth in the measurable resonances of the considered isotopes, if interference between resonances is neglected. The inclusion of relativity decreases the cross section by 35%, mainly due to the complete retardation form of the electric dipole multipole. However, the contribution of the next higher multipoles (e.g., magnetic quadrupole) to the cross section is negligible. This makes the contribution of relativity and higher-order multipoles to the quantum interference induced shifts a minor effect, even for heavy-Z elements."}],"date_published":"2018-02-21T00:00:00Z","external_id":{"isi":["000425601000004"],"arxiv":["1802.07920"]},"type":"journal_article","publisher":"American Physical Society","month":"02","isi":1,"status":"public","publist_id":"7396","language":[{"iso":"eng"}],"quality_controlled":"1","day":"21","issue":"2","project":[{"_id":"25681D80-B435-11E9-9278-68D0E5697425","name":"International IST Postdoc Fellowship Programme","grant_number":"291734","call_identifier":"FP7"}]},{"issue":"3","project":[{"_id":"25681D80-B435-11E9-9278-68D0E5697425","name":"International IST Postdoc Fellowship Programme","call_identifier":"FP7","grant_number":"291734"}],"quality_controlled":"1","page":"607 - 610","day":"01","isi":1,"month":"02","publist_id":"7388","status":"public","language":[{"iso":"eng"}],"type":"journal_article","date_published":"2018-02-01T00:00:00Z","external_id":{"isi":["000423776600066"],"arxiv":["1711.01986"]},"publisher":"Optica  Publishing Group","date_created":"2018-12-11T11:46:27Z","_id":"435","citation":{"short":"B. Midya, V. Konotop, Optics Letters 43 (2018) 607–610.","chicago":"Midya, Bikashkali, and Vladimir Konotop. “Coherent-Perfect-Absorber and Laser for Bound States in a Continuum.” <i>Optics Letters</i>. Optica  Publishing Group, 2018. <a href=\"https://doi.org/10.1364/OL.43.000607\">https://doi.org/10.1364/OL.43.000607</a>.","apa":"Midya, B., &#38; Konotop, V. (2018). Coherent-perfect-absorber and laser for bound states in a continuum. <i>Optics Letters</i>. Optica  Publishing Group. <a href=\"https://doi.org/10.1364/OL.43.000607\">https://doi.org/10.1364/OL.43.000607</a>","mla":"Midya, Bikashkali, and Vladimir Konotop. “Coherent-Perfect-Absorber and Laser for Bound States in a Continuum.” <i>Optics Letters</i>, vol. 43, no. 3, Optica  Publishing Group, 2018, pp. 607–10, doi:<a href=\"https://doi.org/10.1364/OL.43.000607\">10.1364/OL.43.000607</a>.","ama":"Midya B, Konotop V. Coherent-perfect-absorber and laser for bound states in a continuum. <i>Optics Letters</i>. 2018;43(3):607-610. doi:<a href=\"https://doi.org/10.1364/OL.43.000607\">10.1364/OL.43.000607</a>","ista":"Midya B, Konotop V. 2018. Coherent-perfect-absorber and laser for bound states in a continuum. Optics Letters. 43(3), 607–610.","ieee":"B. Midya and V. Konotop, “Coherent-perfect-absorber and laser for bound states in a continuum,” <i>Optics Letters</i>, vol. 43, no. 3. Optica  Publishing Group, pp. 607–610, 2018."},"year":"2018","abstract":[{"text":"It is shown that two fundamentally different phenomena, the bound states in continuum and the spectral singularity (or time-reversed spectral singularity), can occur simultaneously. This can be achieved in a rectangular core dielectric waveguide with an embedded active (or absorbing) layer. In such a system a two-dimensional bound state in a continuum is created in the plane of a waveguide cross section, and it is emitted or absorbed along the waveguide core. The idea can be used for experimental implementation of a laser or a coherent-perfect-absorber for a photonic bound state that resides in a continuous spectrum.","lang":"eng"}],"title":"Coherent-perfect-absorber and laser for bound states in a continuum","publication_status":"published","article_processing_charge":"No","oa_version":"Preprint","scopus_import":"1","doi":"10.1364/OL.43.000607","main_file_link":[{"url":"https://arxiv.org/abs/1711.01986","open_access":"1"}],"acknowledgement":"Seventh Framework Programme (FP7) People: Marie-Curie Actions (PEOPLE) (291734). B. M. acknowledges the financial support by the People Programme (Marie Curie Actions) of the European Union’s Seventh Framework Programme (FP7/ 2007-2013) under REA.","department":[{"_id":"MiLe"}],"ec_funded":1,"date_updated":"2023-10-17T12:15:06Z","publication":"Optics Letters","arxiv":1,"intvolume":"        43","volume":43,"oa":1,"author":[{"first_name":"Bikashkali","last_name":"Midya","id":"456187FC-F248-11E8-B48F-1D18A9856A87","full_name":"Midya, Bikashkali"},{"full_name":"Konotop, Vladimir","first_name":"Vladimir","last_name":"Konotop"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87"},{"day":"18","quality_controlled":"1","project":[{"grant_number":"291734","call_identifier":"FP7","name":"International IST Postdoc Fellowship Programme","_id":"25681D80-B435-11E9-9278-68D0E5697425"}],"issue":"3","publisher":"American Physical Society","type":"journal_article","date_published":"2017-07-18T00:00:00Z","external_id":{"isi":["000405718200012"]},"language":[{"iso":"eng"}],"publist_id":"6481","status":"public","isi":1,"month":"07","publication_identifier":{"issn":["00319007"]},"scopus_import":"1","main_file_link":[{"url":"https://arxiv.org/abs/1706.04085 ","open_access":"1"}],"doi":"10.1103/PhysRevLett.119.033905","article_processing_charge":"No","oa_version":"Submitted Version","publication_status":"published","title":"Waveguides with absorbing boundaries: Nonlinearity controlled by an exceptional point and solitons","abstract":[{"text":"We reveal the existence of continuous families of guided single-mode solitons in planar waveguides with weakly nonlinear active core and absorbing boundaries. Stable propagation of TE and TM-polarized solitons is accompanied by attenuation of all other modes, i.e., the waveguide features properties of conservative and dissipative systems. If the linear spectrum of the waveguide possesses exceptional points, which occurs in the case of TM polarization, an originally focusing (defocusing) material nonlinearity may become effectively defocusing (focusing). This occurs due to the geometric phase of the carried eigenmode when the surface impedance encircles the exceptional point. In its turn, the change of the effective nonlinearity ensures the existence of dark (bright) solitons in spite of focusing (defocusing) Kerr nonlinearity of the core. The existence of an exceptional point can also result in anomalous enhancement of the effective nonlinearity. In terms of practical applications, the nonlinearity of the reported waveguide can be manipulated by controlling the properties of the absorbing cladding.","lang":"eng"}],"citation":{"ista":"Midya B, Konotop V. 2017. Waveguides with absorbing boundaries: Nonlinearity controlled by an exceptional point and solitons. Physical Review Letters. 119(3), 033905.","ieee":"B. Midya and V. Konotop, “Waveguides with absorbing boundaries: Nonlinearity controlled by an exceptional point and solitons,” <i>Physical Review Letters</i>, vol. 119, no. 3. American Physical Society, 2017.","ama":"Midya B, Konotop V. Waveguides with absorbing boundaries: Nonlinearity controlled by an exceptional point and solitons. <i>Physical Review Letters</i>. 2017;119(3). doi:<a href=\"https://doi.org/10.1103/PhysRevLett.119.033905\">10.1103/PhysRevLett.119.033905</a>","mla":"Midya, Bikashkali, and Vladimir Konotop. “Waveguides with Absorbing Boundaries: Nonlinearity Controlled by an Exceptional Point and Solitons.” <i>Physical Review Letters</i>, vol. 119, no. 3, 033905, American Physical Society, 2017, doi:<a href=\"https://doi.org/10.1103/PhysRevLett.119.033905\">10.1103/PhysRevLett.119.033905</a>.","apa":"Midya, B., &#38; Konotop, V. (2017). Waveguides with absorbing boundaries: Nonlinearity controlled by an exceptional point and solitons. <i>Physical Review Letters</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevLett.119.033905\">https://doi.org/10.1103/PhysRevLett.119.033905</a>","chicago":"Midya, Bikashkali, and Vladimir Konotop. “Waveguides with Absorbing Boundaries: Nonlinearity Controlled by an Exceptional Point and Solitons.” <i>Physical Review Letters</i>. American Physical Society, 2017. <a href=\"https://doi.org/10.1103/PhysRevLett.119.033905\">https://doi.org/10.1103/PhysRevLett.119.033905</a>.","short":"B. Midya, V. Konotop, Physical Review Letters 119 (2017)."},"year":"2017","article_number":"033905","date_created":"2018-12-11T11:49:18Z","_id":"939","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","author":[{"id":"456187FC-F248-11E8-B48F-1D18A9856A87","full_name":"Midya, Bikashkali","first_name":"Bikashkali","last_name":"Midya"},{"last_name":"Konotop","first_name":"Vladimir","full_name":"Konotop, Vladimir"}],"volume":119,"oa":1,"intvolume":"       119","ec_funded":1,"date_updated":"2023-09-26T15:39:46Z","publication":"Physical Review Letters","department":[{"_id":"MiLe"}]},{"day":"14","quality_controlled":"1","issue":"2","publisher":"American Physical Society","external_id":{"arxiv":["1611.03701"]},"date_published":"2017-07-14T00:00:00Z","type":"journal_article","language":[{"iso":"eng"}],"month":"07","status":"public","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1611.03701"}],"doi":"10.1103/PhysRevLett.119.023201","scopus_import":1,"publication_identifier":{"issn":["0031-9007"],"eissn":["1079-7114"]},"publication_status":"published","title":"Experimental evidence for quantum tunneling time","oa_version":"Preprint","article_number":"023201","year":"2017","citation":{"short":"N. Camus, E. Yakaboylu, L. Fechner, M. Klaiber, M. Laux, Y. Mi, K.Z. Hatsagortsyan, T. Pfeifer, C.H. Keitel, R. Moshammer, Physical Review Letters 119 (2017).","apa":"Camus, N., Yakaboylu, E., Fechner, L., Klaiber, M., Laux, M., Mi, Y., … Moshammer, R. (2017). Experimental evidence for quantum tunneling time. <i>Physical Review Letters</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevLett.119.023201\">https://doi.org/10.1103/PhysRevLett.119.023201</a>","chicago":"Camus, Nicolas, Enderalp Yakaboylu, Lutz Fechner, Michael Klaiber, Martin Laux, Yonghao Mi, Karen Z. Hatsagortsyan, Thomas Pfeifer, Christoph H. Keitel, and Robert Moshammer. “Experimental Evidence for Quantum Tunneling Time.” <i>Physical Review Letters</i>. American Physical Society, 2017. <a href=\"https://doi.org/10.1103/PhysRevLett.119.023201\">https://doi.org/10.1103/PhysRevLett.119.023201</a>.","mla":"Camus, Nicolas, et al. “Experimental Evidence for Quantum Tunneling Time.” <i>Physical Review Letters</i>, vol. 119, no. 2, 023201, American Physical Society, 2017, doi:<a href=\"https://doi.org/10.1103/PhysRevLett.119.023201\">10.1103/PhysRevLett.119.023201</a>.","ista":"Camus N, Yakaboylu E, Fechner L, Klaiber M, Laux M, Mi Y, Hatsagortsyan KZ, Pfeifer T, Keitel CH, Moshammer R. 2017. Experimental evidence for quantum tunneling time. Physical Review Letters. 119(2), 023201.","ieee":"N. Camus <i>et al.</i>, “Experimental evidence for quantum tunneling time,” <i>Physical Review Letters</i>, vol. 119, no. 2. American Physical Society, 2017.","ama":"Camus N, Yakaboylu E, Fechner L, et al. Experimental evidence for quantum tunneling time. <i>Physical Review Letters</i>. 2017;119(2). doi:<a href=\"https://doi.org/10.1103/PhysRevLett.119.023201\">10.1103/PhysRevLett.119.023201</a>"},"abstract":[{"text":"The first hundred attoseconds of the electron dynamics during strong field tunneling ionization are investigated. We quantify theoretically how the electron’s classical trajectories in the continuum emerge from the tunneling process and test the results with those achieved in parallel from attoclock measurements. An especially high sensitivity on the tunneling barrier is accomplished here by comparing the momentum distributions of two atomic species of slightly deviating atomic potentials (argon and krypton) being ionized under absolutely identical conditions with near-infrared laser pulses (1300 nm). The agreement between experiment and theory provides clear evidence for a nonzero tunneling time delay and a nonvanishing longitudinal momentum of the electron at the “tunnel exit.”","lang":"eng"}],"_id":"6013","date_created":"2019-02-14T15:24:13Z","author":[{"first_name":"Nicolas","last_name":"Camus","full_name":"Camus, Nicolas"},{"last_name":"Yakaboylu","first_name":"Enderalp","full_name":"Yakaboylu, Enderalp","id":"38CB71F6-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-5973-0874"},{"full_name":"Fechner, Lutz","first_name":"Lutz","last_name":"Fechner"},{"full_name":"Klaiber, Michael","last_name":"Klaiber","first_name":"Michael"},{"first_name":"Martin","last_name":"Laux","full_name":"Laux, Martin"},{"last_name":"Mi","first_name":"Yonghao","full_name":"Mi, Yonghao"},{"full_name":"Hatsagortsyan, Karen Z.","last_name":"Hatsagortsyan","first_name":"Karen Z."},{"first_name":"Thomas","last_name":"Pfeifer","full_name":"Pfeifer, Thomas"},{"full_name":"Keitel, Christoph H.","last_name":"Keitel","first_name":"Christoph H."},{"full_name":"Moshammer, Robert","last_name":"Moshammer","first_name":"Robert"}],"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","related_material":{"record":[{"status":"public","relation":"earlier_version","id":"313"}]},"oa":1,"volume":119,"arxiv":1,"intvolume":"       119","department":[{"_id":"MiLe"}],"publication":"Physical Review Letters","date_updated":"2023-02-23T11:13:36Z"},{"day":"14","page":"444 - 495","quality_controlled":"1","alternative_title":["Theoretical and Computational Chemistry Series"],"language":[{"iso":"eng"}],"publist_id":"7201","status":"public","month":"12","publisher":"The Royal Society of Chemistry","type":"book_chapter","date_published":"2017-12-14T00:00:00Z","abstract":[{"text":"In several settings of physics and chemistry one has to deal with molecules interacting with some kind of an external environment, be it a gas, a solution, or a crystal surface. Understanding molecular processes in the presence of such a many-particle bath is inherently challenging, and usually requires large-scale numerical computations. Here, we present an alternative approach to the problem, based on the notion of the angulon quasiparticle. We show that molecules rotating inside superfluid helium nanodroplets and Bose–Einstein condensates form angulons, and therefore can be described by straightforward solutions of a simple microscopic Hamiltonian. Casting the problem in the language of angulons allows us not only to greatly simplify it, but also to gain insights into the origins of the observed phenomena and to make predictions for future experimental studies.","lang":"eng"}],"citation":{"mla":"Lemeshko, Mikhail, and Richard Schmidt. “Molecular Impurities Interacting with a Many-Particle Environment: From Ultracold Gases to Helium Nanodroplets.” <i>Cold Chemistry: Molecular Scattering and Reactivity Near Absolute Zero </i>, edited by Oliver Dulieu and Andreas Osterwalder, vol. 11, The Royal Society of Chemistry, 2017, pp. 444–95, doi:<a href=\"https://doi.org/10.1039/9781782626800-00444\">10.1039/9781782626800-00444</a>.","short":"M. Lemeshko, R. Schmidt, in:, O. Dulieu, A. Osterwalder (Eds.), Cold Chemistry: Molecular Scattering and Reactivity Near Absolute Zero , The Royal Society of Chemistry, 2017, pp. 444–495.","chicago":"Lemeshko, Mikhail, and Richard Schmidt. “Molecular Impurities Interacting with a Many-Particle Environment: From Ultracold Gases to Helium Nanodroplets.” In <i>Cold Chemistry: Molecular Scattering and Reactivity Near Absolute Zero </i>, edited by Oliver Dulieu and Andreas Osterwalder, 11:444–95. Theoretical and Computational Chemistry Series. The Royal Society of Chemistry, 2017. <a href=\"https://doi.org/10.1039/9781782626800-00444\">https://doi.org/10.1039/9781782626800-00444</a>.","apa":"Lemeshko, M., &#38; Schmidt, R. (2017). Molecular impurities interacting with a many-particle environment: From ultracold gases to helium nanodroplets. In O. Dulieu &#38; A. Osterwalder (Eds.), <i>Cold Chemistry: Molecular Scattering and Reactivity Near Absolute Zero </i> (Vol. 11, pp. 444–495). The Royal Society of Chemistry. <a href=\"https://doi.org/10.1039/9781782626800-00444\">https://doi.org/10.1039/9781782626800-00444</a>","ama":"Lemeshko M, Schmidt R. Molecular impurities interacting with a many-particle environment: From ultracold gases to helium nanodroplets. In: Dulieu O, Osterwalder A, eds. <i>Cold Chemistry: Molecular Scattering and Reactivity Near Absolute Zero </i>. Vol 11. Theoretical and Computational Chemistry Series. The Royal Society of Chemistry; 2017:444-495. doi:<a href=\"https://doi.org/10.1039/9781782626800-00444\">10.1039/9781782626800-00444</a>","ieee":"M. Lemeshko and R. Schmidt, “Molecular impurities interacting with a many-particle environment: From ultracold gases to helium nanodroplets,” in <i>Cold Chemistry: Molecular Scattering and Reactivity Near Absolute Zero </i>, vol. 11, O. Dulieu and A. Osterwalder, Eds. The Royal Society of Chemistry, 2017, pp. 444–495.","ista":"Lemeshko M, Schmidt R. 2017.Molecular impurities interacting with a many-particle environment: From ultracold gases to helium nanodroplets. In: Cold Chemistry: Molecular Scattering and Reactivity Near Absolute Zero . Theoretical and Computational Chemistry Series, vol. 11, 444–495."},"year":"2017","date_created":"2018-12-11T11:47:27Z","_id":"604","editor":[{"full_name":"Dulieu, Oliver","last_name":"Dulieu","first_name":"Oliver"},{"first_name":"Andreas","last_name":"Osterwalder","full_name":"Osterwalder, Andreas"}],"publication_identifier":{"issn":["20413181"]},"scopus_import":1,"main_file_link":[{"url":"https://arxiv.org/abs/1703.06753","open_access":"1"}],"doi":"10.1039/9781782626800-00444","oa_version":"Submitted Version","publication_status":"published","title":"Molecular impurities interacting with a many-particle environment: From ultracold gases to helium nanodroplets","intvolume":"        11","date_updated":"2021-01-12T08:05:50Z","publication":"Cold Chemistry: Molecular Scattering and Reactivity Near Absolute Zero ","department":[{"_id":"MiLe"}],"user_id":"4435EBFC-F248-11E8-B48F-1D18A9856A87","author":[{"id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-6990-7802","full_name":"Lemeshko, Mikhail","first_name":"Mikhail","last_name":"Lemeshko"},{"full_name":"Schmidt, Richard","last_name":"Schmidt","first_name":"Richard"}],"volume":11,"oa":1,"series_title":"Theoretical and Computational Chemistry Series"},{"pubrep_id":"809","tmp":{"name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","short":"CC BY (4.0)"},"has_accepted_license":"1","day":"04","quality_controlled":"1","ddc":["539"],"language":[{"iso":"eng"}],"publist_id":"6380","status":"public","isi":1,"month":"04","publisher":"Nature Publishing Group","type":"journal_article","date_published":"2017-04-04T00:00:00Z","external_id":{"isi":["000398148100001"]},"abstract":[{"lang":"eng","text":"Vortices are commonly observed in the context of classical hydrodynamics: from whirlpools after stirring the coffee in a cup to a violent atmospheric phenomenon such as a tornado, all classical vortices are characterized by an arbitrary circulation value of the local velocity field. On the other hand the appearance of vortices with quantized circulation represents one of the fundamental signatures of macroscopic quantum phenomena. In two-dimensional superfluids quantized vortices play a key role in determining finite-temperature properties, as the superfluid phase and the normal state are separated by a vortex unbinding transition, the Berezinskii-Kosterlitz-Thouless transition. Very recent experiments with two-dimensional superfluid fermions motivate the present work: we present theoretical results based on the renormalization group showing that the universal jump of the superfluid density and the critical temperature crucially depend on the interaction strength, providing a strong benchmark for forthcoming investigations."}],"citation":{"mla":"Bighin, Giacomo, and Luca Salasnich. “Vortices and Antivortices in Two-Dimensional Ultracold Fermi Gases.” <i>Scientific Reports</i>, vol. 7, 45702, Nature Publishing Group, 2017, doi:<a href=\"https://doi.org/10.1038/srep45702\">10.1038/srep45702</a>.","short":"G. Bighin, L. Salasnich, Scientific Reports 7 (2017).","apa":"Bighin, G., &#38; Salasnich, L. (2017). Vortices and antivortices in two-dimensional ultracold Fermi gases. <i>Scientific Reports</i>. Nature Publishing Group. <a href=\"https://doi.org/10.1038/srep45702\">https://doi.org/10.1038/srep45702</a>","chicago":"Bighin, Giacomo, and Luca Salasnich. “Vortices and Antivortices in Two-Dimensional Ultracold Fermi Gases.” <i>Scientific Reports</i>. Nature Publishing Group, 2017. <a href=\"https://doi.org/10.1038/srep45702\">https://doi.org/10.1038/srep45702</a>.","ama":"Bighin G, Salasnich L. Vortices and antivortices in two-dimensional ultracold Fermi gases. <i>Scientific Reports</i>. 2017;7. doi:<a href=\"https://doi.org/10.1038/srep45702\">10.1038/srep45702</a>","ieee":"G. Bighin and L. Salasnich, “Vortices and antivortices in two-dimensional ultracold Fermi gases,” <i>Scientific Reports</i>, vol. 7. Nature Publishing Group, 2017.","ista":"Bighin G, Salasnich L. 2017. Vortices and antivortices in two-dimensional ultracold Fermi gases. Scientific Reports. 7, 45702."},"year":"2017","article_number":"45702","date_created":"2018-12-11T11:49:42Z","file":[{"access_level":"open_access","file_name":"IST-2017-809-v1+1_srep45702.pdf","date_created":"2018-12-12T10:12:32Z","file_size":478289,"date_updated":"2018-12-12T10:12:32Z","relation":"main_file","content_type":"application/pdf","file_id":"4950","creator":"system"}],"_id":"1015","publication_identifier":{"issn":["20452322"]},"scopus_import":"1","doi":"10.1038/srep45702","oa_version":"Published Version","article_processing_charge":"No","file_date_updated":"2018-12-12T10:12:32Z","publication_status":"published","title":"Vortices and antivortices in two-dimensional ultracold Fermi gases","intvolume":"         7","date_updated":"2023-09-22T09:43:10Z","publication":"Scientific Reports","department":[{"_id":"MiLe"}],"user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","author":[{"last_name":"Bighin","first_name":"Giacomo","full_name":"Bighin, Giacomo","orcid":"0000-0001-8823-9777","id":"4CA96FD4-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Salasnich","first_name":"Luca","full_name":"Salasnich, Luca"}],"volume":7,"oa":1},{"issue":"2","project":[{"_id":"25681D80-B435-11E9-9278-68D0E5697425","name":"International IST Postdoc Fellowship Programme","grant_number":"291734","call_identifier":"FP7"}],"day":"01","quality_controlled":"1","language":[{"iso":"eng"}],"month":"02","isi":1,"status":"public","publist_id":"6305","publisher":"American Physical Society","date_published":"2017-02-01T00:00:00Z","external_id":{"isi":["000400571700011"]},"type":"journal_article","article_number":"023403","year":"2017","citation":{"ama":"Klaiber M, Daněk J, Yakaboylu E, Hatsagortsyan K, Keitel C. Strong-field ionization via a high-order Coulomb-corrected strong-field approximation. <i> Physical Review A - Atomic, Molecular, and Optical Physics</i>. 2017;95(2). doi:<a href=\"https://doi.org/10.1103/PhysRevA.95.023403\">10.1103/PhysRevA.95.023403</a>","ieee":"M. Klaiber, J. Daněk, E. Yakaboylu, K. Hatsagortsyan, and C. Keitel, “Strong-field ionization via a high-order Coulomb-corrected strong-field approximation,” <i> Physical Review A - Atomic, Molecular, and Optical Physics</i>, vol. 95, no. 2. American Physical Society, 2017.","ista":"Klaiber M, Daněk J, Yakaboylu E, Hatsagortsyan K, Keitel C. 2017. Strong-field ionization via a high-order Coulomb-corrected strong-field approximation.  Physical Review A - Atomic, Molecular, and Optical Physics. 95(2), 023403.","mla":"Klaiber, Michael, et al. “Strong-Field Ionization via a High-Order Coulomb-Corrected Strong-Field Approximation.” <i> Physical Review A - Atomic, Molecular, and Optical Physics</i>, vol. 95, no. 2, 023403, American Physical Society, 2017, doi:<a href=\"https://doi.org/10.1103/PhysRevA.95.023403\">10.1103/PhysRevA.95.023403</a>.","short":"M. Klaiber, J. Daněk, E. Yakaboylu, K. Hatsagortsyan, C. Keitel,  Physical Review A - Atomic, Molecular, and Optical Physics 95 (2017).","chicago":"Klaiber, Michael, Jiří Daněk, Enderalp Yakaboylu, Karen Hatsagortsyan, and Christoph Keitel. “Strong-Field Ionization via a High-Order Coulomb-Corrected Strong-Field Approximation.” <i> Physical Review A - Atomic, Molecular, and Optical Physics</i>. American Physical Society, 2017. <a href=\"https://doi.org/10.1103/PhysRevA.95.023403\">https://doi.org/10.1103/PhysRevA.95.023403</a>.","apa":"Klaiber, M., Daněk, J., Yakaboylu, E., Hatsagortsyan, K., &#38; Keitel, C. (2017). Strong-field ionization via a high-order Coulomb-corrected strong-field approximation. <i> Physical Review A - Atomic, Molecular, and Optical Physics</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevA.95.023403\">https://doi.org/10.1103/PhysRevA.95.023403</a>"},"abstract":[{"lang":"eng","text":"Signatures of the Coulomb corrections in the photoelectron momentum distribution during laser-induced ionization of atoms or ions in tunneling and multiphoton regimes are investigated analytically in the case of a one-dimensional problem. A high-order Coulomb-corrected strong-field approximation is applied, where the exact continuum state in the S matrix is approximated by the eikonal Coulomb-Volkov state including the second-order corrections to the eikonal. Although without high-order corrections our theory coincides with the known analytical R-matrix (ARM) theory, we propose a simplified procedure for the matrix element derivation. Rather than matching the eikonal Coulomb-Volkov wave function with the bound state as in the ARM theory to remove the Coulomb singularity, we calculate the matrix element via the saddle-point integration method by time as well as by coordinate, and in this way avoiding the Coulomb singularity. The momentum shift in the photoelectron momentum distribution with respect to the ARM theory due to high-order corrections is analyzed for tunneling and multiphoton regimes. The relation of the quantum corrections to the tunneling delay time is discussed."}],"_id":"1076","date_created":"2018-12-11T11:50:01Z","main_file_link":[{"url":"https://arxiv.org/abs/1609.07018","open_access":"1"}],"doi":"10.1103/PhysRevA.95.023403","scopus_import":"1","publication_identifier":{"issn":["24699926"]},"title":"Strong-field ionization via a high-order Coulomb-corrected strong-field approximation","publication_status":"published","oa_version":"Submitted Version","article_processing_charge":"No","intvolume":"        95","department":[{"_id":"MiLe"}],"publication":" Physical Review A - Atomic, Molecular, and Optical Physics","date_updated":"2023-09-20T11:57:23Z","ec_funded":1,"author":[{"first_name":"Michael","last_name":"Klaiber","full_name":"Klaiber, Michael"},{"full_name":"Daněk, Jiří","first_name":"Jiří","last_name":"Daněk"},{"full_name":"Yakaboylu, Enderalp","id":"38CB71F6-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-5973-0874","last_name":"Yakaboylu","first_name":"Enderalp"},{"last_name":"Hatsagortsyan","first_name":"Karen","full_name":"Hatsagortsyan, Karen"},{"last_name":"Keitel","first_name":"Christoph","full_name":"Keitel, Christoph"}],"user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","oa":1,"volume":95},{"oa":1,"volume":1,"author":[{"full_name":"Cherepanov, Igor","id":"339C7E5A-F248-11E8-B48F-1D18A9856A87","last_name":"Cherepanov","first_name":"Igor"},{"full_name":"Lemeshko, Mikhail","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-6990-7802","last_name":"Lemeshko","first_name":"Mikhail"}],"user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","department":[{"_id":"MiLe"}],"publication":"Physical Review Materials","date_updated":"2023-09-22T09:53:42Z","ec_funded":1,"intvolume":"         1","title":"Fingerprints of angulon instabilities in the spectra of matrix-isolated molecules","publication_status":"published","article_processing_charge":"No","oa_version":"Submitted Version","doi":"10.1103/PhysRevMaterials.1.035602","main_file_link":[{"url":"https://arxiv.org/abs/1705.09220","open_access":"1"}],"scopus_import":"1","_id":"994","date_created":"2018-12-11T11:49:35Z","year":"2017","citation":{"mla":"Cherepanov, Igor, and Mikhail Lemeshko. “Fingerprints of Angulon Instabilities in the Spectra of Matrix-Isolated Molecules.” <i>Physical Review Materials</i>, vol. 1, no. 3, American Physical Society, 2017, doi:<a href=\"https://doi.org/10.1103/PhysRevMaterials.1.035602\">10.1103/PhysRevMaterials.1.035602</a>.","chicago":"Cherepanov, Igor, and Mikhail Lemeshko. “Fingerprints of Angulon Instabilities in the Spectra of Matrix-Isolated Molecules.” <i>Physical Review Materials</i>. American Physical Society, 2017. <a href=\"https://doi.org/10.1103/PhysRevMaterials.1.035602\">https://doi.org/10.1103/PhysRevMaterials.1.035602</a>.","short":"I. Cherepanov, M. Lemeshko, Physical Review Materials 1 (2017).","apa":"Cherepanov, I., &#38; Lemeshko, M. (2017). Fingerprints of angulon instabilities in the spectra of matrix-isolated molecules. <i>Physical Review Materials</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevMaterials.1.035602\">https://doi.org/10.1103/PhysRevMaterials.1.035602</a>","ama":"Cherepanov I, Lemeshko M. Fingerprints of angulon instabilities in the spectra of matrix-isolated molecules. <i>Physical Review Materials</i>. 2017;1(3). doi:<a href=\"https://doi.org/10.1103/PhysRevMaterials.1.035602\">10.1103/PhysRevMaterials.1.035602</a>","ieee":"I. Cherepanov and M. Lemeshko, “Fingerprints of angulon instabilities in the spectra of matrix-isolated molecules,” <i>Physical Review Materials</i>, vol. 1, no. 3. American Physical Society, 2017.","ista":"Cherepanov I, Lemeshko M. 2017. Fingerprints of angulon instabilities in the spectra of matrix-isolated molecules. Physical Review Materials. 1(3)."},"abstract":[{"text":"The formation of vortices is usually considered to be the main mechanism of angular momentum disposal in superfluids. Recently, it was predicted that a superfluid can acquire angular momentum via an alternative, microscopic route -- namely, through interaction with rotating impurities, forming so-called `angulon quasiparticles' [Phys. Rev. Lett. 114, 203001 (2015)]. The angulon instabilities correspond to transfer of a small number of angular momentum quanta from the impurity to the superfluid, as opposed to vortex instabilities, where angular momentum is quantized in units of ℏ  per atom. Furthermore, since conventional impurities (such as molecules) represent three-dimensional (3D) rotors, the angular momentum transferred is intrinsically 3D as well, as opposed to a merely planar rotation which is inherent to vortices. Herein we show that the angulon theory can explain the anomalous broadening of the spectroscopic lines observed for CH 3   and NH 3   molecules in superfluid helium nanodroplets, thereby providing a fingerprint of the emerging angulon instabilities in experiment.","lang":"eng"}],"external_id":{"isi":["000416564000004"]},"date_published":"2017-08-08T00:00:00Z","type":"journal_article","publisher":"American Physical Society","month":"08","isi":1,"status":"public","publist_id":"6405","language":[{"iso":"eng"}],"quality_controlled":"1","day":"08","issue":"3","project":[{"name":"Quantum rotations in the presence of a many-body environment","_id":"26031614-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","grant_number":"P29902"},{"name":"International IST Doctoral Program","_id":"2564DBCA-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","grant_number":"665385"}]}]