[{"publication_identifier":{"issn":["2643-1564"]},"external_id":{"arxiv":["1908.02483"]},"date_updated":"2024-02-28T13:11:40Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","year":"2019","has_accepted_license":"1","oa_version":"Published Version","article_type":"original","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","short":"CC BY (4.0)"},"volume":1,"file_date_updated":"2020-07-14T12:47:52Z","oa":1,"publication_status":"published","_id":"7190","date_published":"2019-12-16T00:00:00Z","abstract":[{"text":"We investigate the ground-state energy of a one-dimensional Fermi gas with two bosonic impurities. We consider spinless fermions with no fermion-fermion interactions. The fermion-impurity and impurity-impurity interactions are modeled with Dirac delta functions. First, we study the case where impurity and fermion have equal masses, and the impurity-impurity two-body interaction is identical to the fermion-impurity interaction, such that the system is solvable with the Bethe ansatz. For attractive interactions, we find that the energy of the impurity-impurity subsystem is below the energy of the bound state that exists without the Fermi gas. We interpret this as a manifestation of attractive boson-boson interactions induced by the fermionic medium, and refer to the impurity-impurity subsystem as an in-medium bound state. For repulsive interactions, we find no in-medium bound states. Second, we construct an effective model to describe these interactions, and compare its predictions to the exact solution. We use this effective model to study nonintegrable systems with unequal masses and/or potentials. We discuss parameter regimes for which impurity-impurity attraction induced by the Fermi gas can lead to the formation of in-medium bound states made of bosons that repel each other in the absence of the Fermi gas.","lang":"eng"}],"article_number":"033177","file":[{"relation":"main_file","file_id":"7193","content_type":"application/pdf","date_created":"2019-12-18T07:13:14Z","file_size":1370022,"creator":"dernst","file_name":"2019_PhysRevResearch_Huber.pdf","checksum":"382eb67e62a77052a23887332d363f96","access_level":"open_access","date_updated":"2020-07-14T12:47:52Z"}],"article_processing_charge":"No","issue":"3","arxiv":1,"ddc":["530"],"doi":"10.1103/physrevresearch.1.033177","language":[{"iso":"eng"}],"project":[{"name":"ISTplus - Postdoctoral Fellowships","grant_number":"754411","call_identifier":"H2020","_id":"260C2330-B435-11E9-9278-68D0E5697425"}],"author":[{"full_name":"Huber, D.","first_name":"D.","last_name":"Huber"},{"last_name":"Hammer","first_name":"H.-W.","full_name":"Hammer, H.-W."},{"last_name":"Volosniev","full_name":"Volosniev, Artem","first_name":"Artem","orcid":"0000-0003-0393-5525","id":"37D278BC-F248-11E8-B48F-1D18A9856A87"}],"type":"journal_article","day":"16","title":"In-medium bound states of two bosonic impurities in a one-dimensional Fermi gas","citation":{"ista":"Huber D, Hammer H-W, Volosniev A. 2019. In-medium bound states of two bosonic impurities in a one-dimensional Fermi gas. Physical Review Research. 1(3), 033177.","ieee":"D. Huber, H.-W. Hammer, and A. Volosniev, “In-medium bound states of two bosonic impurities in a one-dimensional Fermi gas,” Physical Review Research, vol. 1, no. 3. American Physical Society, 2019.","chicago":"Huber, D., H.-W. Hammer, and Artem Volosniev. “In-Medium Bound States of Two Bosonic Impurities in a One-Dimensional Fermi Gas.” Physical Review Research. American Physical Society, 2019. https://doi.org/10.1103/physrevresearch.1.033177.","mla":"Huber, D., et al. “In-Medium Bound States of Two Bosonic Impurities in a One-Dimensional Fermi Gas.” Physical Review Research, vol. 1, no. 3, 033177, American Physical Society, 2019, doi:10.1103/physrevresearch.1.033177.","short":"D. Huber, H.-W. Hammer, A. Volosniev, Physical Review Research 1 (2019).","apa":"Huber, D., Hammer, H.-W., & Volosniev, A. (2019). In-medium bound states of two bosonic impurities in a one-dimensional Fermi gas. Physical Review Research. American Physical Society. https://doi.org/10.1103/physrevresearch.1.033177","ama":"Huber D, Hammer H-W, Volosniev A. In-medium bound states of two bosonic impurities in a one-dimensional Fermi gas. Physical Review Research. 2019;1(3). doi:10.1103/physrevresearch.1.033177"},"ec_funded":1,"status":"public","intvolume":" 1","publication":"Physical Review Research","quality_controlled":"1","department":[{"_id":"MiLe"}],"publisher":"American Physical Society","date_created":"2019-12-17T13:03:41Z","month":"12"},{"title":"Quantum control of molecular rotation","citation":{"short":"C.P. Koch, M. Lemeshko, D. Sugny, Reviews of Modern Physics 91 (2019).","ama":"Koch CP, Lemeshko M, Sugny D. Quantum control of molecular rotation. Reviews of Modern Physics. 2019;91(3). doi:10.1103/revmodphys.91.035005","apa":"Koch, C. P., Lemeshko, M., & Sugny, D. (2019). Quantum control of molecular rotation. Reviews of Modern Physics. American Physical Society. https://doi.org/10.1103/revmodphys.91.035005","chicago":"Koch, Christiane P., Mikhail Lemeshko, and Dominique Sugny. “Quantum Control of Molecular Rotation.” Reviews of Modern Physics. American Physical Society, 2019. https://doi.org/10.1103/revmodphys.91.035005.","ista":"Koch CP, Lemeshko M, Sugny D. 2019. Quantum control of molecular rotation. Reviews of Modern Physics. 91(3), 035005.","ieee":"C. P. Koch, M. Lemeshko, and D. Sugny, “Quantum control of molecular rotation,” Reviews of Modern Physics, vol. 91, no. 3. American Physical Society, 2019.","mla":"Koch, Christiane P., et al. “Quantum Control of Molecular Rotation.” Reviews of Modern Physics, vol. 91, no. 3, 035005, American Physical Society, 2019, doi:10.1103/revmodphys.91.035005."},"type":"journal_article","author":[{"first_name":"Christiane P.","full_name":"Koch, Christiane P.","last_name":"Koch"},{"id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-6990-7802","last_name":"Lemeshko","full_name":"Lemeshko, Mikhail","first_name":"Mikhail"},{"last_name":"Sugny","first_name":"Dominique","full_name":"Sugny, Dominique"}],"day":"18","project":[{"_id":"26031614-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"Quantum rotations in the presence of a many-body environment","grant_number":"P29902"}],"doi":"10.1103/revmodphys.91.035005","language":[{"iso":"eng"}],"date_created":"2020-01-29T16:04:19Z","month":"09","isi":1,"publisher":"American Physical Society","intvolume":" 91","status":"public","publication":"Reviews of Modern Physics","department":[{"_id":"MiLe"}],"quality_controlled":"1","year":"2019","oa_version":"Preprint","article_type":"original","publication_identifier":{"eissn":["1539-0756"],"issn":["0034-6861"]},"external_id":{"arxiv":["1810.11338"],"isi":["000486661700001"]},"scopus_import":"1","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_updated":"2024-02-28T13:15:33Z","article_processing_charge":"No","issue":"3","arxiv":1,"abstract":[{"text":"The angular momentum of molecules, or, equivalently, their rotation in three-dimensional space, is ideally suited for quantum control. Molecular angular momentum is naturally quantized, time evolution is governed by a well-known Hamiltonian with only a few accurately known parameters, and transitions between rotational levels can be driven by external fields from various parts of the electromagnetic spectrum. Control over the rotational motion can be exerted in one-, two-, and many-body scenarios, thereby allowing one to probe Anderson localization, target stereoselectivity of bimolecular reactions, or encode quantum information to name just a few examples. The corresponding approaches to quantum control are pursued within separate, and typically disjoint, subfields of physics, including ultrafast science, cold collisions, ultracold gases, quantum information science, and condensed-matter physics. It is the purpose of this review to present the various control phenomena, which all rely on the same underlying physics, within a unified framework. To this end, recall the Hamiltonian for free rotations, assuming the rigid rotor approximation to be valid, and summarize the different ways for a rotor to interact with external electromagnetic fields. These interactions can be exploited for control—from achieving alignment, orientation, or laser cooling in a one-body framework, steering bimolecular collisions, or realizing a quantum computer or quantum simulator in the many-body setting.","lang":"eng"}],"_id":"7396","date_published":"2019-09-18T00:00:00Z","article_number":"035005 ","main_file_link":[{"url":"https://arxiv.org/abs/1810.11338","open_access":"1"}],"oa":1,"publication_status":"published","volume":91},{"author":[{"id":"4B7E523C-F248-11E8-B48F-1D18A9856A87","last_name":"Li","first_name":"Xiang","full_name":"Li, Xiang"},{"orcid":"0000-0001-8823-9777","id":"4CA96FD4-F248-11E8-B48F-1D18A9856A87","last_name":"Bighin","first_name":"Giacomo","full_name":"Bighin, Giacomo"},{"last_name":"Yakaboylu","full_name":"Yakaboylu, Enderalp","first_name":"Enderalp","id":"38CB71F6-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-5973-0874"},{"last_name":"Lemeshko","full_name":"Lemeshko, Mikhail","first_name":"Mikhail","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-6990-7802"}],"type":"journal_article","day":"18","title":"Variational approaches to quantum impurities: from the Fröhlich polaron to the angulon","ec_funded":1,"citation":{"short":"X. Li, G. Bighin, E. Yakaboylu, M. Lemeshko, Molecular Physics (2019).","ama":"Li X, Bighin G, Yakaboylu E, Lemeshko M. Variational approaches to quantum impurities: from the Fröhlich polaron to the angulon. Molecular Physics. 2019. doi:10.1080/00268976.2019.1567852","apa":"Li, X., Bighin, G., Yakaboylu, E., & Lemeshko, M. (2019). Variational approaches to quantum impurities: from the Fröhlich polaron to the angulon. Molecular Physics. Taylor and Francis. https://doi.org/10.1080/00268976.2019.1567852","chicago":"Li, Xiang, Giacomo Bighin, Enderalp Yakaboylu, and Mikhail Lemeshko. “Variational Approaches to Quantum Impurities: From the Fröhlich Polaron to the Angulon.” Molecular Physics. Taylor and Francis, 2019. https://doi.org/10.1080/00268976.2019.1567852.","ieee":"X. Li, G. Bighin, E. Yakaboylu, and M. Lemeshko, “Variational approaches to quantum impurities: from the Fröhlich polaron to the angulon,” Molecular Physics. Taylor and Francis, 2019.","ista":"Li X, Bighin G, Yakaboylu E, Lemeshko M. 2019. Variational approaches to quantum impurities: from the Fröhlich polaron to the angulon. Molecular Physics.","mla":"Li, Xiang, et al. “Variational Approaches to Quantum Impurities: From the Fröhlich Polaron to the Angulon.” Molecular Physics, Taylor and Francis, 2019, doi:10.1080/00268976.2019.1567852."},"doi":"10.1080/00268976.2019.1567852","ddc":["530"],"language":[{"iso":"eng"}],"project":[{"name":"Quantum rotations in the presence of a many-body environment","grant_number":"P29902","_id":"26031614-B435-11E9-9278-68D0E5697425","call_identifier":"FWF"},{"call_identifier":"FP7","_id":"25681D80-B435-11E9-9278-68D0E5697425","name":"International IST Postdoc Fellowship Programme","grant_number":"291734"}],"related_material":{"record":[{"status":"public","relation":"dissertation_contains","id":"8958"}]},"date_created":"2019-01-27T22:59:10Z","month":"01","status":"public","department":[{"_id":"MiLe"}],"quality_controlled":"1","publication":"Molecular Physics","isi":1,"publisher":"Taylor and Francis","has_accepted_license":"1","oa_version":"Published Version","year":"2019","publication_identifier":{"issn":["00268976"]},"date_updated":"2023-09-07T13:16:42Z","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","scopus_import":"1","external_id":{"isi":["000474641400008"]},"abstract":[{"text":"Problems involving quantum impurities, in which one or a few particles are interacting with a macroscopic environment, represent a pervasive paradigm, spanning across atomic, molecular, and condensed-matter physics. In this paper we introduce new variational approaches to quantum impurities and apply them to the Fröhlich polaron–a quasiparticle formed out of an electron (or other point-like impurity) in a polar medium, and to the angulon–a quasiparticle formed out of a rotating molecule in a bosonic bath. We benchmark these approaches against established theories, evaluating their accuracy as a function of the impurity-bath coupling.","lang":"eng"}],"_id":"5886","date_published":"2019-01-18T00:00:00Z","file":[{"date_created":"2019-01-29T08:32:57Z","relation":"main_file","file_id":"5896","content_type":"application/pdf","access_level":"open_access","date_updated":"2020-07-14T12:47:13Z","checksum":"178964744b636a6f036372f4f090a657","creator":"dernst","file_size":1309966,"file_name":"2019_MolecularPhysics_Li.pdf"}],"article_processing_charge":"No","tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","short":"CC BY (4.0)"},"file_date_updated":"2020-07-14T12:47:13Z","oa":1,"publication_status":"published"},{"year":"2019","oa_version":"Preprint","external_id":{"isi":["000459223400004"],"arxiv":["1802.01638"]},"scopus_import":"1","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_updated":"2024-02-28T13:11:54Z","_id":"6092","date_published":"2019-02-01T00:00:00Z","abstract":[{"lang":"eng","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."}],"article_number":"064428","article_processing_charge":"No","issue":"6","arxiv":1,"volume":99,"oa":1,"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1802.01638"}],"publication_status":"published","author":[{"first_name":"Johann H","full_name":"Mentink, Johann H","last_name":"Mentink"},{"last_name":"Katsnelson","full_name":"Katsnelson, Mikhail","first_name":"Mikhail"},{"first_name":"Mikhail","full_name":"Lemeshko, Mikhail","last_name":"Lemeshko","orcid":"0000-0002-6990-7802","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87"}],"type":"journal_article","day":"01","title":"Quantum many-body dynamics of the Einstein-de Haas effect","citation":{"ama":"Mentink JH, Katsnelson M, Lemeshko M. Quantum many-body dynamics of the Einstein-de Haas effect. Physical Review B. 2019;99(6). doi:10.1103/PhysRevB.99.064428","apa":"Mentink, J. H., Katsnelson, M., & Lemeshko, M. (2019). Quantum many-body dynamics of the Einstein-de Haas effect. Physical Review B. American Physical Society. https://doi.org/10.1103/PhysRevB.99.064428","short":"J.H. Mentink, M. Katsnelson, M. Lemeshko, Physical Review B 99 (2019).","mla":"Mentink, Johann H., et al. “Quantum Many-Body Dynamics of the Einstein-de Haas Effect.” Physical Review B, vol. 99, no. 6, 064428, American Physical Society, 2019, doi:10.1103/PhysRevB.99.064428.","chicago":"Mentink, Johann H, Mikhail Katsnelson, and Mikhail Lemeshko. “Quantum Many-Body Dynamics of the Einstein-de Haas Effect.” Physical Review B. American Physical Society, 2019. https://doi.org/10.1103/PhysRevB.99.064428.","ieee":"J. H. Mentink, M. Katsnelson, and M. Lemeshko, “Quantum many-body dynamics of the Einstein-de Haas effect,” Physical Review B, vol. 99, no. 6. American Physical Society, 2019.","ista":"Mentink JH, Katsnelson M, Lemeshko M. 2019. Quantum many-body dynamics of the Einstein-de Haas effect. Physical Review B. 99(6), 064428."},"doi":"10.1103/PhysRevB.99.064428","language":[{"iso":"eng"}],"project":[{"name":"Quantum rotations in the presence of a many-body environment","grant_number":"P29902","call_identifier":"FWF","_id":"26031614-B435-11E9-9278-68D0E5697425"}],"date_created":"2019-03-10T22:59:20Z","month":"02","status":"public","intvolume":" 99","publication":"Physical Review B","department":[{"_id":"MiLe"}],"quality_controlled":"1","isi":1,"publisher":"American Physical Society"},{"isi":1,"publisher":"American Physical Society","intvolume":" 97","status":"public","publication":"Physical Review A - Atomic, Molecular, and Optical Physics","department":[{"_id":"MiLe"}],"quality_controlled":"1","date_created":"2018-12-11T11:45:40Z","month":"04","project":[{"_id":"25681D80-B435-11E9-9278-68D0E5697425","call_identifier":"FP7","name":"International IST Postdoc Fellowship Programme","grant_number":"291734"}],"doi":"10.1103/PhysRevA.97.043842","language":[{"iso":"eng"}],"title":"Two-photon processes based on quantum commutators","citation":{"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,” Physical Review A - Atomic, Molecular, and Optical Physics, vol. 97, no. 4. American Physical Society, 2018.","chicago":"Fratini, Filippo, Laleh Safari, Pedro Amaro, and José Santos. “Two-Photon Processes Based on Quantum Commutators.” Physical Review A - Atomic, Molecular, and Optical Physics. American Physical Society, 2018. https://doi.org/10.1103/PhysRevA.97.043842.","mla":"Fratini, Filippo, et al. “Two-Photon Processes Based on Quantum Commutators.” Physical Review A - Atomic, Molecular, and Optical Physics, vol. 97, no. 4, American Physical Society, 2018, doi:10.1103/PhysRevA.97.043842.","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., & Santos, J. (2018). Two-photon processes based on quantum commutators. Physical Review A - Atomic, Molecular, and Optical Physics. American Physical Society. https://doi.org/10.1103/PhysRevA.97.043842","ama":"Fratini F, Safari L, Amaro P, Santos J. Two-photon processes based on quantum commutators. Physical Review A - Atomic, Molecular, and Optical Physics. 2018;97(4). doi:10.1103/PhysRevA.97.043842"},"ec_funded":1,"author":[{"last_name":"Fratini","full_name":"Fratini, Filippo","first_name":"Filippo"},{"first_name":"Laleh","full_name":"Safari, Laleh","last_name":"Safari","id":"3C325E5E-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Amaro","first_name":"Pedro","full_name":"Amaro, Pedro"},{"full_name":"Santos, José","first_name":"José","last_name":"Santos"}],"type":"journal_article","day":"18","oa":1,"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1801.06892"}],"publication_status":"published","volume":97,"article_processing_charge":"No","issue":"4","arxiv":1,"_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"}],"date_published":"2018-04-18T00:00:00Z","scopus_import":"1","external_id":{"arxiv":["1801.06892"],"isi":["000430296800008"]},"date_updated":"2023-09-19T10:17:56Z","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","oa_version":"Submitted Version","year":"2018","publist_id":"7587"},{"author":[{"id":"38CB71F6-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-5973-0874","last_name":"Yakaboylu","full_name":"Yakaboylu, Enderalp","first_name":"Enderalp"},{"orcid":"0000-0002-6990-7802","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","full_name":"Lemeshko, Mikhail","first_name":"Mikhail","last_name":"Lemeshko"}],"type":"journal_article","day":"15","title":"Anyonic statistics of quantum impurities in two dimensions","citation":{"apa":"Yakaboylu, E., & Lemeshko, M. (2018). Anyonic statistics of quantum impurities in two dimensions. Physical Review B - Condensed Matter and Materials Physics. American Physical Society. https://doi.org/10.1103/PhysRevB.98.045402","ama":"Yakaboylu E, Lemeshko M. Anyonic statistics of quantum impurities in two dimensions. Physical Review B - Condensed Matter and Materials Physics. 2018;98(4). doi:10.1103/PhysRevB.98.045402","short":"E. Yakaboylu, M. Lemeshko, Physical Review B - Condensed Matter and Materials Physics 98 (2018).","mla":"Yakaboylu, Enderalp, and Mikhail Lemeshko. “Anyonic Statistics of Quantum Impurities in Two Dimensions.” Physical Review B - Condensed Matter and Materials Physics, vol. 98, no. 4, 045402, American Physical Society, 2018, doi:10.1103/PhysRevB.98.045402.","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.","ieee":"E. Yakaboylu and M. Lemeshko, “Anyonic statistics of quantum impurities in two dimensions,” Physical Review B - Condensed Matter and Materials Physics, vol. 98, no. 4. American Physical Society, 2018.","chicago":"Yakaboylu, Enderalp, and Mikhail Lemeshko. “Anyonic Statistics of Quantum Impurities in Two Dimensions.” Physical Review B - Condensed Matter and Materials Physics. American Physical Society, 2018. https://doi.org/10.1103/PhysRevB.98.045402."},"ec_funded":1,"doi":"10.1103/PhysRevB.98.045402","language":[{"iso":"eng"}],"project":[{"grant_number":"291734","name":"International IST Postdoc Fellowship Programme","_id":"25681D80-B435-11E9-9278-68D0E5697425","call_identifier":"FP7"},{"grant_number":"P29902","name":"Quantum rotations in the presence of a many-body environment","_id":"26031614-B435-11E9-9278-68D0E5697425","call_identifier":"FWF"}],"date_created":"2018-12-11T11:45:08Z","month":"07","intvolume":" 98","status":"public","publication":"Physical Review B - Condensed Matter and Materials Physics","department":[{"_id":"MiLe"}],"quality_controlled":"1","isi":1,"publisher":"American Physical Society","oa_version":"Submitted Version","year":"2018","external_id":{"isi":["000436939100007"],"arxiv":["1712.00308"]},"scopus_import":"1","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","date_updated":"2023-09-08T13:22:57Z","_id":"195","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."}],"date_published":"2018-07-15T00:00:00Z","article_number":"045402","article_processing_charge":"No","issue":"4","arxiv":1,"volume":98,"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1712.00308"}],"oa":1,"publication_status":"published"},{"publisher":"American Physical Society","isi":1,"quality_controlled":"1","department":[{"_id":"MiLe"}],"publication":"Physical Review Letters","intvolume":" 121","status":"public","month":"12","date_created":"2019-01-06T22:59:12Z","project":[{"name":"International IST Postdoc Fellowship Programme","grant_number":"291734","_id":"25681D80-B435-11E9-9278-68D0E5697425","call_identifier":"FP7"},{"call_identifier":"FWF","_id":"26031614-B435-11E9-9278-68D0E5697425","name":"Quantum rotations in the presence of a many-body environment","grant_number":"P29902"}],"language":[{"iso":"eng"}],"doi":"10.1103/PhysRevLett.121.255302","ec_funded":1,"citation":{"short":"E. Yakaboylu, M. Shkolnikov, M. Lemeshko, Physical Review Letters 121 (2018).","apa":"Yakaboylu, E., Shkolnikov, M., & Lemeshko, M. (2018). Quantum groups as hidden symmetries of quantum impurities. Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.121.255302","ama":"Yakaboylu E, Shkolnikov M, Lemeshko M. Quantum groups as hidden symmetries of quantum impurities. Physical Review Letters. 2018;121(25). doi:10.1103/PhysRevLett.121.255302","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,” Physical Review Letters, vol. 121, no. 25. American Physical Society, 2018.","chicago":"Yakaboylu, Enderalp, Mikhail Shkolnikov, and Mikhail Lemeshko. “Quantum Groups as Hidden Symmetries of Quantum Impurities.” Physical Review Letters. American Physical Society, 2018. https://doi.org/10.1103/PhysRevLett.121.255302.","mla":"Yakaboylu, Enderalp, et al. “Quantum Groups as Hidden Symmetries of Quantum Impurities.” Physical Review Letters, vol. 121, no. 25, 255302, American Physical Society, 2018, doi:10.1103/PhysRevLett.121.255302."},"title":"Quantum groups as hidden symmetries of quantum impurities","day":"17","author":[{"id":"38CB71F6-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-5973-0874","last_name":"Yakaboylu","full_name":"Yakaboylu, Enderalp","first_name":"Enderalp"},{"first_name":"Mikhail","full_name":"Shkolnikov, Mikhail","last_name":"Shkolnikov","orcid":"0000-0002-4310-178X","id":"35084A62-F248-11E8-B48F-1D18A9856A87"},{"orcid":"0000-0002-6990-7802","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","full_name":"Lemeshko, Mikhail","first_name":"Mikhail","last_name":"Lemeshko"}],"type":"journal_article","publication_status":"published","oa":1,"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1809.00222"}],"volume":121,"arxiv":1,"issue":"25","article_processing_charge":"No","article_number":"255302","abstract":[{"lang":"eng","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."}],"_id":"5794","date_published":"2018-12-17T00:00:00Z","date_updated":"2023-09-15T12:09:06Z","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","external_id":{"isi":["000454178600009"],"arxiv":["1809.00222"]},"scopus_import":"1","publication_identifier":{"issn":["00319007"]},"article_type":"original","year":"2018","oa_version":"Preprint"},{"status":"public","intvolume":" 98","quality_controlled":"1","department":[{"_id":"MiLe"},{"_id":"RoSe"}],"publication":"Physical Review B","isi":1,"publisher":"American Physical Society","date_created":"2019-02-14T10:37:09Z","month":"12","doi":"10.1103/physrevb.98.224506","language":[{"iso":"eng"}],"project":[{"name":"International IST Postdoc Fellowship Programme","grant_number":"291734","call_identifier":"FP7","_id":"25681D80-B435-11E9-9278-68D0E5697425"},{"grant_number":"694227","name":"Analysis of quantum many-body systems","_id":"25C6DC12-B435-11E9-9278-68D0E5697425","call_identifier":"H2020"}],"author":[{"id":"38CB71F6-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-5973-0874","last_name":"Yakaboylu","first_name":"Enderalp","full_name":"Yakaboylu, Enderalp"},{"id":"456187FC-F248-11E8-B48F-1D18A9856A87","full_name":"Midya, Bikashkali","first_name":"Bikashkali","last_name":"Midya"},{"last_name":"Deuchert","first_name":"Andreas","full_name":"Deuchert, Andreas","orcid":"0000-0003-3146-6746","id":"4DA65CD0-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Leopold","first_name":"Nikolai K","full_name":"Leopold, Nikolai K","orcid":"0000-0002-0495-6822","id":"4BC40BEC-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Mikhail","full_name":"Lemeshko, Mikhail","last_name":"Lemeshko","orcid":"0000-0002-6990-7802","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87"}],"type":"journal_article","day":"12","title":"Theory of the rotating polaron: Spectrum and self-localization","ec_funded":1,"citation":{"mla":"Yakaboylu, Enderalp, et al. “Theory of the Rotating Polaron: Spectrum and Self-Localization.” Physical Review B, vol. 98, no. 22, 224506, American Physical Society, 2018, doi:10.1103/physrevb.98.224506.","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,” Physical Review B, vol. 98, no. 22. American Physical Society, 2018.","chicago":"Yakaboylu, Enderalp, Bikashkali Midya, Andreas Deuchert, Nikolai K Leopold, and Mikhail Lemeshko. “Theory of the Rotating Polaron: Spectrum and Self-Localization.” Physical Review B. American Physical Society, 2018. https://doi.org/10.1103/physrevb.98.224506.","apa":"Yakaboylu, E., Midya, B., Deuchert, A., Leopold, N. K., & Lemeshko, M. (2018). Theory of the rotating polaron: Spectrum and self-localization. Physical Review B. American Physical Society. https://doi.org/10.1103/physrevb.98.224506","ama":"Yakaboylu E, Midya B, Deuchert A, Leopold NK, Lemeshko M. Theory of the rotating polaron: Spectrum and self-localization. Physical Review B. 2018;98(22). doi:10.1103/physrevb.98.224506","short":"E. Yakaboylu, B. Midya, A. Deuchert, N.K. Leopold, M. Lemeshko, Physical Review B 98 (2018)."},"volume":98,"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1809.01204"}],"oa":1,"publication_status":"published","date_published":"2018-12-12T00:00:00Z","_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"}],"article_number":"224506","issue":"22","article_processing_charge":"No","arxiv":1,"publication_identifier":{"issn":["2469-9950"],"eissn":["2469-9969"]},"user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","date_updated":"2023-09-19T14:29:03Z","scopus_import":"1","external_id":{"arxiv":["1809.01204"],"isi":["000452992700008"]},"oa_version":"Preprint","year":"2018"},{"citation":{"ama":"Bighin G, Tscherbul T, Lemeshko M. Diagrammatic Monte Carlo approach to angular momentum in quantum many-particle systems. Physical Review Letters. 2018;121(16). doi:10.1103/physrevlett.121.165301","apa":"Bighin, G., Tscherbul, T., & Lemeshko, M. (2018). Diagrammatic Monte Carlo approach to angular momentum in quantum many-particle systems. Physical Review Letters. American Physical Society. https://doi.org/10.1103/physrevlett.121.165301","short":"G. Bighin, T. Tscherbul, M. Lemeshko, Physical Review Letters 121 (2018).","mla":"Bighin, Giacomo, et al. “Diagrammatic Monte Carlo Approach to Angular Momentum in Quantum Many-Particle Systems.” Physical Review Letters, vol. 121, no. 16, 165301, American Physical Society, 2018, doi:10.1103/physrevlett.121.165301.","chicago":"Bighin, Giacomo, Timur Tscherbul, and Mikhail Lemeshko. “Diagrammatic Monte Carlo Approach to Angular Momentum in Quantum Many-Particle Systems.” Physical Review Letters. American Physical Society, 2018. https://doi.org/10.1103/physrevlett.121.165301.","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.","ieee":"G. Bighin, T. Tscherbul, and M. Lemeshko, “Diagrammatic Monte Carlo approach to angular momentum in quantum many-particle systems,” Physical Review Letters, vol. 121, no. 16. American Physical Society, 2018."},"title":"Diagrammatic Monte Carlo approach to angular momentum in quantum many-particle systems","day":"16","type":"journal_article","author":[{"last_name":"Bighin","first_name":"Giacomo","full_name":"Bighin, Giacomo","orcid":"0000-0001-8823-9777","id":"4CA96FD4-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Timur","full_name":"Tscherbul, Timur","last_name":"Tscherbul"},{"id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-6990-7802","first_name":"Mikhail","full_name":"Lemeshko, Mikhail","last_name":"Lemeshko"}],"related_material":{"link":[{"url":"https://ist.ac.at/en/news/description-of-rotating-molecules-made-easy/","description":"News on IST Homepage","relation":"press_release"}]},"project":[{"grant_number":"P29902","name":"Quantum rotations in the presence of a many-body environment","_id":"26031614-B435-11E9-9278-68D0E5697425","call_identifier":"FWF"}],"language":[{"iso":"eng"}],"doi":"10.1103/physrevlett.121.165301","month":"10","date_created":"2019-04-17T10:53:38Z","publisher":"American Physical Society","isi":1,"publication":"Physical Review Letters","quality_controlled":"1","department":[{"_id":"MiLe"}],"intvolume":" 121","status":"public","oa_version":"Preprint","year":"2018","scopus_import":"1","external_id":{"arxiv":["1803.07990"],"isi":["000447468400008"]},"date_updated":"2024-02-28T13:15:09Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","arxiv":1,"article_processing_charge":"No","issue":"16","article_number":"165301","_id":"6339","abstract":[{"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.","lang":"eng"}],"date_published":"2018-10-16T00:00:00Z","publication_status":"published","oa":1,"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1803.07990"}],"volume":121},{"title":"Effect of a magnetic field on molecule–solvent angular momentum transfer","ec_funded":1,"citation":{"mla":"Rzadkowski, Wojciech, and Mikhail Lemeshko. “Effect of a Magnetic Field on Molecule–Solvent Angular Momentum Transfer.” The Journal of Chemical Physics, vol. 148, no. 10, 104307, AIP Publishing, 2018, doi:10.1063/1.5017591.","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,” The Journal of Chemical Physics, vol. 148, no. 10. AIP Publishing, 2018.","chicago":"Rzadkowski, Wojciech, and Mikhail Lemeshko. “Effect of a Magnetic Field on Molecule–Solvent Angular Momentum Transfer.” The Journal of Chemical Physics. AIP Publishing, 2018. https://doi.org/10.1063/1.5017591.","apa":"Rzadkowski, W., & Lemeshko, M. (2018). Effect of a magnetic field on molecule–solvent angular momentum transfer. The Journal of Chemical Physics. AIP Publishing. https://doi.org/10.1063/1.5017591","ama":"Rzadkowski W, Lemeshko M. Effect of a magnetic field on molecule–solvent angular momentum transfer. The Journal of Chemical Physics. 2018;148(10). doi:10.1063/1.5017591","short":"W. Rzadkowski, M. Lemeshko, The Journal of Chemical Physics 148 (2018)."},"type":"journal_article","author":[{"full_name":"Rzadkowski, Wojciech","first_name":"Wojciech","last_name":"Rzadkowski","id":"48C55298-F248-11E8-B48F-1D18A9856A87","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"}],"day":"14","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","project":[{"_id":"26031614-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","grant_number":"P29902","name":"Quantum rotations in the presence of a many-body environment"},{"call_identifier":"H2020","_id":"2564DBCA-B435-11E9-9278-68D0E5697425","name":"International IST Doctoral Program","grant_number":"665385"}],"related_material":{"record":[{"status":"public","relation":"dissertation_contains","id":"10759"}]},"doi":"10.1063/1.5017591","language":[{"iso":"eng"}],"date_created":"2018-12-11T11:46:21Z","month":"03","isi":1,"publisher":"AIP Publishing","status":"public","intvolume":" 148","quality_controlled":"1","department":[{"_id":"MiLe"}],"publication":"The Journal of Chemical Physics","year":"2018","oa_version":"Preprint","publist_id":"7408","article_type":"original","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_updated":"2024-02-28T13:01:59Z","external_id":{"arxiv":["1711.09904"],"isi":["000427517200065"]},"scopus_import":"1","issue":"10","article_processing_charge":"No","arxiv":1,"_id":"415","abstract":[{"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.","lang":"eng"}],"date_published":"2018-03-14T00:00:00Z","article_number":"104307","main_file_link":[{"url":"https://arxiv.org/abs/1711.09904","open_access":"1"}],"oa":1,"publication_status":"published","volume":148},{"publist_id":"8025","oa_version":"Preprint","year":"2018","scopus_import":"1","external_id":{"arxiv":["1803.07990"]},"date_updated":"2024-02-28T13:14:53Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","article_number":"165301","_id":"417","date_published":"2018-10-16T00:00:00Z","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. "}],"arxiv":1,"article_processing_charge":"No","issue":"16","volume":121,"publication_status":"published","oa":1,"main_file_link":[{"url":"https://arxiv.org/abs/1803.07990","open_access":"1"}],"day":"16","type":"journal_article","author":[{"last_name":"Bighin","full_name":"Bighin, Giacomo","first_name":"Giacomo","orcid":"0000-0001-8823-9777","id":"4CA96FD4-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Tscherbul","first_name":"Timur","full_name":"Tscherbul, Timur"},{"last_name":"Lemeshko","full_name":"Lemeshko, Mikhail","first_name":"Mikhail","orcid":"0000-0002-6990-7802","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87"}],"citation":{"short":"G. Bighin, T. Tscherbul, M. Lemeshko, Physical Review Letters 121 (2018).","apa":"Bighin, G., Tscherbul, T., & Lemeshko, M. (2018). Diagrammatic Monte Carlo approach to rotating molecular impurities. Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.121.165301","ama":"Bighin G, Tscherbul T, Lemeshko M. Diagrammatic Monte Carlo approach to rotating molecular impurities. Physical Review Letters. 2018;121(16). doi:10.1103/PhysRevLett.121.165301","ieee":"G. Bighin, T. Tscherbul, and M. Lemeshko, “Diagrammatic Monte Carlo approach to rotating molecular impurities,” Physical Review Letters, vol. 121, no. 16. American Physical Society, 2018.","ista":"Bighin G, Tscherbul T, Lemeshko M. 2018. Diagrammatic Monte Carlo approach to rotating molecular impurities. Physical Review Letters. 121(16), 165301.","chicago":"Bighin, Giacomo, Timur Tscherbul, and Mikhail Lemeshko. “Diagrammatic Monte Carlo Approach to Rotating Molecular Impurities.” Physical Review Letters. American Physical Society, 2018. https://doi.org/10.1103/PhysRevLett.121.165301.","mla":"Bighin, Giacomo, et al. “Diagrammatic Monte Carlo Approach to Rotating Molecular Impurities.” Physical Review Letters, vol. 121, no. 16, 165301, American Physical Society, 2018, doi:10.1103/PhysRevLett.121.165301."},"title":"Diagrammatic Monte Carlo approach to rotating molecular impurities","language":[{"iso":"eng"}],"doi":"10.1103/PhysRevLett.121.165301","project":[{"name":"Quantum rotations in the presence of a many-body environment","grant_number":"P29902","call_identifier":"FWF","_id":"26031614-B435-11E9-9278-68D0E5697425"}],"month":"10","date_created":"2018-12-11T11:46:22Z","publication":"Physical Review Letters","quality_controlled":"1","department":[{"_id":"MiLe"}],"status":"public","intvolume":" 121","publisher":"American Physical Society"},{"year":"2018","oa_version":"Preprint","publist_id":"7402","external_id":{"isi":["000438217300007"]},"scopus_import":"1","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","date_updated":"2023-09-18T08:09:59Z","_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."}],"date_published":"2018-07-10T00:00:00Z","article_processing_charge":"No","issue":"17","volume":32,"oa":1,"main_file_link":[{"url":"https://arxiv.org/abs/1710.11171","open_access":"1"}],"publication_status":"published","type":"journal_article","author":[{"last_name":"Bighin","full_name":"Bighin, Giacomo","first_name":"Giacomo","id":"4CA96FD4-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-8823-9777"},{"first_name":"Luca","full_name":"Salasnich, Luca","last_name":"Salasnich"}],"day":"10","title":"Renormalization of the superfluid density in the two-dimensional BCS-BEC crossover","citation":{"short":"G. Bighin, L. Salasnich, International Journal of Modern Physics B 32 (2018) 1840022.","apa":"Bighin, G., & Salasnich, L. (2018). Renormalization of the superfluid density in the two-dimensional BCS-BEC crossover. International Journal of Modern Physics B. World Scientific Publishing. https://doi.org/10.1142/S0217979218400222","ama":"Bighin G, Salasnich L. Renormalization of the superfluid density in the two-dimensional BCS-BEC crossover. International Journal of Modern Physics B. 2018;32(17):1840022. doi:10.1142/S0217979218400222","ieee":"G. Bighin and L. Salasnich, “Renormalization of the superfluid density in the two-dimensional BCS-BEC crossover,” International Journal of Modern Physics B, 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.","chicago":"Bighin, Giacomo, and Luca Salasnich. “Renormalization of the Superfluid Density in the Two-Dimensional BCS-BEC Crossover.” International Journal of Modern Physics B. World Scientific Publishing, 2018. https://doi.org/10.1142/S0217979218400222.","mla":"Bighin, Giacomo, and Luca Salasnich. “Renormalization of the Superfluid Density in the Two-Dimensional BCS-BEC Crossover.” International Journal of Modern Physics B, vol. 32, no. 17, World Scientific Publishing, 2018, p. 1840022, doi:10.1142/S0217979218400222."},"doi":"10.1142/S0217979218400222","language":[{"iso":"eng"}],"date_created":"2018-12-11T11:46:22Z","month":"07","page":"1840022","intvolume":" 32","status":"public","publication":"International Journal of Modern Physics B","department":[{"_id":"MiLe"}],"quality_controlled":"1","isi":1,"publisher":"World Scientific Publishing"},{"date_created":"2018-12-11T11:46:25Z","month":"02","intvolume":" 97","status":"public","department":[{"_id":"MiLe"}],"quality_controlled":"1","publication":" Physical Review A - Atomic, Molecular, and Optical Physics","isi":1,"publisher":"American Physical Society","type":"journal_article","author":[{"last_name":"Amaro","first_name":"Pedro","full_name":"Amaro, Pedro"},{"full_name":"Loureiro, Ulisses","first_name":"Ulisses","last_name":"Loureiro"},{"last_name":"Safari","first_name":"Laleh","full_name":"Safari, Laleh","id":"3C325E5E-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Filippo","full_name":"Fratini, Filippo","last_name":"Fratini"},{"first_name":"Paul","full_name":"Indelicato, Paul","last_name":"Indelicato"},{"first_name":"Thomas","full_name":"Stöhlker, Thomas","last_name":"Stöhlker"},{"last_name":"Santos","full_name":"Santos, José","first_name":"José"}],"day":"21","title":"Quantum interference in laser spectroscopy of highly charged lithiumlike ions","ec_funded":1,"citation":{"apa":"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. American Physical Society. https://doi.org/10.1103/PhysRevA.97.022510","ama":"Amaro P, Loureiro U, Safari L, et al. Quantum interference in laser spectroscopy of highly charged lithiumlike ions. Physical Review A - Atomic, Molecular, and Optical Physics. 2018;97(2). doi:10.1103/PhysRevA.97.022510","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).","mla":"Amaro, Pedro, et al. “Quantum Interference in Laser Spectroscopy of Highly Charged Lithiumlike Ions.” Physical Review A - Atomic, Molecular, and Optical Physics, vol. 97, no. 2, 022510, American Physical Society, 2018, doi:10.1103/PhysRevA.97.022510.","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 et al., “Quantum interference in laser spectroscopy of highly charged lithiumlike ions,” Physical Review A - Atomic, Molecular, and Optical Physics, vol. 97, no. 2. American Physical Society, 2018.","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.” Physical Review A - Atomic, Molecular, and Optical Physics. American Physical Society, 2018. https://doi.org/10.1103/PhysRevA.97.022510."},"doi":"10.1103/PhysRevA.97.022510","language":[{"iso":"eng"}],"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","project":[{"name":"International IST Postdoc Fellowship Programme","grant_number":"291734","call_identifier":"FP7","_id":"25681D80-B435-11E9-9278-68D0E5697425"}],"_id":"427","date_published":"2018-02-21T00:00:00Z","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."}],"article_number":"022510","issue":"2","article_processing_charge":"No","arxiv":1,"volume":97,"oa":1,"main_file_link":[{"url":"https://arxiv.org/abs/1802.07920","open_access":"1"}],"publication_status":"published","year":"2018","oa_version":"Preprint","publist_id":"7396","article_type":"original","date_updated":"2023-09-15T12:09:35Z","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","scopus_import":"1","external_id":{"arxiv":["1802.07920"],"isi":["000425601000004"]}},{"doi":"10.1364/OL.43.000607","language":[{"iso":"eng"}],"project":[{"call_identifier":"FP7","_id":"25681D80-B435-11E9-9278-68D0E5697425","name":"International IST Postdoc Fellowship Programme","grant_number":"291734"}],"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.","type":"journal_article","author":[{"id":"456187FC-F248-11E8-B48F-1D18A9856A87","last_name":"Midya","full_name":"Midya, Bikashkali","first_name":"Bikashkali"},{"last_name":"Konotop","full_name":"Konotop, Vladimir","first_name":"Vladimir"}],"day":"01","title":"Coherent-perfect-absorber and laser for bound states in a continuum","citation":{"mla":"Midya, Bikashkali, and Vladimir Konotop. “Coherent-Perfect-Absorber and Laser for Bound States in a Continuum.” Optics Letters, vol. 43, no. 3, Optica Publishing Group, 2018, pp. 607–10, doi:10.1364/OL.43.000607.","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,” Optics Letters, vol. 43, no. 3. Optica Publishing Group, pp. 607–610, 2018.","chicago":"Midya, Bikashkali, and Vladimir Konotop. “Coherent-Perfect-Absorber and Laser for Bound States in a Continuum.” Optics Letters. Optica Publishing Group, 2018. https://doi.org/10.1364/OL.43.000607.","apa":"Midya, B., & Konotop, V. (2018). Coherent-perfect-absorber and laser for bound states in a continuum. Optics Letters. Optica Publishing Group. https://doi.org/10.1364/OL.43.000607","ama":"Midya B, Konotop V. Coherent-perfect-absorber and laser for bound states in a continuum. Optics Letters. 2018;43(3):607-610. doi:10.1364/OL.43.000607","short":"B. Midya, V. Konotop, Optics Letters 43 (2018) 607–610."},"ec_funded":1,"intvolume":" 43","status":"public","publication":"Optics Letters","department":[{"_id":"MiLe"}],"quality_controlled":"1","isi":1,"publisher":"Optica Publishing Group","date_created":"2018-12-11T11:46:27Z","month":"02","page":"607 - 610","scopus_import":"1","external_id":{"arxiv":["1711.01986"],"isi":["000423776600066"]},"date_updated":"2023-10-17T12:15:06Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","year":"2018","oa_version":"Preprint","publist_id":"7388","volume":43,"main_file_link":[{"url":"https://arxiv.org/abs/1711.01986","open_access":"1"}],"oa":1,"publication_status":"published","_id":"435","date_published":"2018-02-01T00:00:00Z","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"}],"article_processing_charge":"No","issue":"3","arxiv":1},{"_id":"313","abstract":[{"lang":"eng","text":"Tunneling of a particle through a potential barrier remains one of the most remarkable quantum phenomena. Owing to advances in laser technology, electric fields comparable to those electrons experience in atoms are readily generated and open opportunities to dynamically investigate the process of electron tunneling through the potential barrier formed by the superposition of both laser and atomic fields. Attosecond-time and angstrom-space resolution of the strong laser-field technique allow to address fundamental questions related to tunneling, which are still open and debated: Which time is spent under the barrier and what momentum is picked up by the particle in the meantime? In this combined experimental and theoretical study we demonstrate that for strong-field ionization the leading quantum mechanical Wigner treatment for the time resolved description of tunneling is valid. We achieve a high sensitivity on the tunneling barrier and unambiguously isolate its effects by performing a differential study of two systems with almost identical tunneling geometry. Moreover, working with a low frequency laser, we essentially limit the non-adiabaticity of the process as a major source of uncertainty. The agreement between experiment and theory implies two substantial corrections with respect to the widely employed quasiclassical treatment: In addition to a non-vanishing longitudinal momentum along the laser field-direction we provide clear evidence for a non-zero tunneling time delay. This addresses also the fundamental question how the transition occurs from the tunnel barrier to free space classical evolution of the ejected electron."}],"date_published":"2017-07-14T00:00:00Z","article_number":"012004","file":[{"date_updated":"2020-07-14T12:46:00Z","access_level":"open_access","checksum":"6e70b525a84f6d5fb175c48e9f5cb59a","file_name":"2017_Physics_Camus.pdf","file_size":949321,"creator":"dernst","date_created":"2019-01-22T08:34:10Z","content_type":"application/pdf","relation":"main_file","file_id":"5871"}],"issue":"1","arxiv":1,"volume":999,"tmp":{"legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","short":"CC BY (4.0)"},"file_date_updated":"2020-07-14T12:46:00Z","oa":1,"publication_status":"published","has_accepted_license":"1","oa_version":"Published Version","year":"2017","publist_id":"7552","publication_identifier":{"issn":["17426588"]},"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_updated":"2023-02-23T12:36:07Z","external_id":{"arxiv":["1611.03701"]},"scopus_import":1,"date_created":"2018-12-11T11:45:46Z","month":"07","intvolume":" 999","status":"public","department":[{"_id":"MiLe"}],"quality_controlled":"1","publisher":"American Physical Society","alternative_title":["Journal of Physics: Conference Series"],"type":"conference","author":[{"first_name":"Nicolas","full_name":"Camus, Nicolas","last_name":"Camus"},{"orcid":"0000-0001-5973-0874","id":"38CB71F6-F248-11E8-B48F-1D18A9856A87","full_name":"Yakaboylu, Enderalp","first_name":"Enderalp","last_name":"Yakaboylu"},{"last_name":"Fechner","full_name":"Fechner, Lutz","first_name":"Lutz"},{"first_name":"Michael","full_name":"Klaiber, Michael","last_name":"Klaiber"},{"last_name":"Laux","first_name":"Martin","full_name":"Laux, Martin"},{"last_name":"Mi","full_name":"Mi, Yonghao","first_name":"Yonghao"},{"last_name":"Hatsagortsyan","full_name":"Hatsagortsyan, Karen","first_name":"Karen"},{"last_name":"Pfeifer","first_name":"Thomas","full_name":"Pfeifer, Thomas"},{"last_name":"Keitel","full_name":"Keitel, Cristoph","first_name":"Cristoph"},{"last_name":"Moshammer","first_name":"Robert","full_name":"Moshammer, Robert"}],"day":"14","conference":{"location":"Kazan, Russian Federation","end_date":"2017-08-21","start_date":"2017-08-17","name":"Annual International Laser Physics Workshop LPHYS"},"title":"Experimental evidence for Wigner's tunneling time","citation":{"short":"N. Camus, E. Yakaboylu, L. Fechner, M. Klaiber, M. Laux, Y. Mi, K. Hatsagortsyan, T. Pfeifer, C. Keitel, R. Moshammer, in:, American Physical Society, 2017.","ama":"Camus N, Yakaboylu E, Fechner L, et al. Experimental evidence for Wigner’s tunneling time. In: Vol 999. American Physical Society; 2017. doi:10.1088/1742-6596/999/1/012004","apa":"Camus, N., Yakaboylu, E., Fechner, L., Klaiber, M., Laux, M., Mi, Y., … Moshammer, R. (2017). Experimental evidence for Wigner’s tunneling time (Vol. 999). Presented at the Annual International Laser Physics Workshop LPHYS, Kazan, Russian Federation: American Physical Society. https://doi.org/10.1088/1742-6596/999/1/012004","chicago":"Camus, Nicolas, Enderalp Yakaboylu, Lutz Fechner, Michael Klaiber, Martin Laux, Yonghao Mi, Karen Hatsagortsyan, Thomas Pfeifer, Cristoph Keitel, and Robert Moshammer. “Experimental Evidence for Wigner’s Tunneling Time,” Vol. 999. American Physical Society, 2017. https://doi.org/10.1088/1742-6596/999/1/012004.","ieee":"N. Camus et al., “Experimental evidence for Wigner’s tunneling time,” presented at the Annual International Laser Physics Workshop LPHYS, Kazan, Russian Federation, 2017, vol. 999, no. 1.","ista":"Camus N, Yakaboylu E, Fechner L, Klaiber M, Laux M, Mi Y, Hatsagortsyan K, Pfeifer T, Keitel C, Moshammer R. 2017. Experimental evidence for Wigner’s tunneling time. Annual International Laser Physics Workshop LPHYS, Journal of Physics: Conference Series, vol. 999, 012004.","mla":"Camus, Nicolas, et al. Experimental Evidence for Wigner’s Tunneling Time. Vol. 999, no. 1, 012004, American Physical Society, 2017, doi:10.1088/1742-6596/999/1/012004."},"doi":"10.1088/1742-6596/999/1/012004","ddc":["530"],"language":[{"iso":"eng"}],"related_material":{"record":[{"status":"public","id":"6013","relation":"later_version"}]}},{"month":"02","date_created":"2018-12-11T11:50:01Z","publisher":"American Physical Society","isi":1,"quality_controlled":"1","department":[{"_id":"MiLe"}],"publication":" Physical Review A - Atomic, Molecular, and Optical Physics","status":"public","intvolume":" 95","ec_funded":1,"citation":{"mla":"Klaiber, Michael, et al. “Strong-Field Ionization via a High-Order Coulomb-Corrected Strong-Field Approximation.” Physical Review A - Atomic, Molecular, and Optical Physics, vol. 95, no. 2, 023403, American Physical Society, 2017, doi:10.1103/PhysRevA.95.023403.","chicago":"Klaiber, Michael, Jiří Daněk, Enderalp Yakaboylu, Karen Hatsagortsyan, and Christoph Keitel. “Strong-Field Ionization via a High-Order Coulomb-Corrected Strong-Field Approximation.” Physical Review A - Atomic, Molecular, and Optical Physics. American Physical Society, 2017. https://doi.org/10.1103/PhysRevA.95.023403.","ieee":"M. Klaiber, J. Daněk, E. Yakaboylu, K. Hatsagortsyan, and C. Keitel, “Strong-field ionization via a high-order Coulomb-corrected strong-field approximation,” Physical Review A - Atomic, Molecular, and Optical Physics, 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.","ama":"Klaiber M, Daněk J, Yakaboylu E, Hatsagortsyan K, Keitel C. Strong-field ionization via a high-order Coulomb-corrected strong-field approximation. Physical Review A - Atomic, Molecular, and Optical Physics. 2017;95(2). doi:10.1103/PhysRevA.95.023403","apa":"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. American Physical Society. https://doi.org/10.1103/PhysRevA.95.023403","short":"M. Klaiber, J. Daněk, E. Yakaboylu, K. Hatsagortsyan, C. Keitel, Physical Review A - Atomic, Molecular, and Optical Physics 95 (2017)."},"title":"Strong-field ionization via a high-order Coulomb-corrected strong-field approximation","day":"01","type":"journal_article","author":[{"last_name":"Klaiber","first_name":"Michael","full_name":"Klaiber, Michael"},{"last_name":"Daněk","first_name":"Jiří","full_name":"Daněk, Jiří"},{"first_name":"Enderalp","full_name":"Yakaboylu, Enderalp","last_name":"Yakaboylu","orcid":"0000-0001-5973-0874","id":"38CB71F6-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Hatsagortsyan, Karen","first_name":"Karen","last_name":"Hatsagortsyan"},{"last_name":"Keitel","first_name":"Christoph","full_name":"Keitel, Christoph"}],"project":[{"call_identifier":"FP7","_id":"25681D80-B435-11E9-9278-68D0E5697425","name":"International IST Postdoc Fellowship Programme","grant_number":"291734"}],"language":[{"iso":"eng"}],"doi":"10.1103/PhysRevA.95.023403","issue":"2","article_processing_charge":"No","article_number":"023403","_id":"1076","abstract":[{"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.","lang":"eng"}],"date_published":"2017-02-01T00:00:00Z","publication_status":"published","main_file_link":[{"url":"https://arxiv.org/abs/1609.07018","open_access":"1"}],"oa":1,"volume":95,"publist_id":"6305","year":"2017","oa_version":"Submitted Version","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","date_updated":"2023-09-20T11:57:23Z","scopus_import":"1","external_id":{"isi":["000400571700011"]},"publication_identifier":{"issn":["24699926"]}},{"isi":1,"publisher":"American Physical Society","status":"public","intvolume":" 118","department":[{"_id":"MiLe"}],"quality_controlled":"1","publication":"Physical Review Letters","date_created":"2018-12-11T11:50:12Z","month":"05","project":[{"call_identifier":"FWF","_id":"26031614-B435-11E9-9278-68D0E5697425","grant_number":"P29902","name":"Quantum rotations in the presence of a many-body environment"}],"doi":"10.1103/PhysRevLett.118.203203","language":[{"iso":"eng"}],"title":"Laser-induced rotation of iodine molecules in helium nanodroplets: Revivals and breaking-free","citation":{"ista":"Shepperson B, Søndergaard A, Christiansen L, Kaczmarczyk J, Zillich R, Lemeshko M, Stapelfeldt H. 2017. Laser-induced rotation of iodine molecules in helium nanodroplets: Revivals and breaking-free. Physical Review Letters. 118(20), 203203.","ieee":"B. Shepperson et al., “Laser-induced rotation of iodine molecules in helium nanodroplets: Revivals and breaking-free,” Physical Review Letters, vol. 118, no. 20. American Physical Society, 2017.","chicago":"Shepperson, Benjamin, Anders Søndergaard, Lars Christiansen, Jan Kaczmarczyk, Robert Zillich, Mikhail Lemeshko, and Henrik Stapelfeldt. “Laser-Induced Rotation of Iodine Molecules in Helium Nanodroplets: Revivals and Breaking-Free.” Physical Review Letters. American Physical Society, 2017. https://doi.org/10.1103/PhysRevLett.118.203203.","mla":"Shepperson, Benjamin, et al. “Laser-Induced Rotation of Iodine Molecules in Helium Nanodroplets: Revivals and Breaking-Free.” Physical Review Letters, vol. 118, no. 20, 203203, American Physical Society, 2017, doi:10.1103/PhysRevLett.118.203203.","short":"B. Shepperson, A. Søndergaard, L. Christiansen, J. Kaczmarczyk, R. Zillich, M. Lemeshko, H. Stapelfeldt, Physical Review Letters 118 (2017).","apa":"Shepperson, B., Søndergaard, A., Christiansen, L., Kaczmarczyk, J., Zillich, R., Lemeshko, M., & Stapelfeldt, H. (2017). Laser-induced rotation of iodine molecules in helium nanodroplets: Revivals and breaking-free. Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.118.203203","ama":"Shepperson B, Søndergaard A, Christiansen L, et al. Laser-induced rotation of iodine molecules in helium nanodroplets: Revivals and breaking-free. Physical Review Letters. 2017;118(20). doi:10.1103/PhysRevLett.118.203203"},"type":"journal_article","author":[{"last_name":"Shepperson","full_name":"Shepperson, Benjamin","first_name":"Benjamin"},{"last_name":"Søndergaard","full_name":"Søndergaard, Anders","first_name":"Anders"},{"full_name":"Christiansen, Lars","first_name":"Lars","last_name":"Christiansen"},{"id":"46C405DE-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-1629-3675","full_name":"Kaczmarczyk, Jan","first_name":"Jan","last_name":"Kaczmarczyk"},{"last_name":"Zillich","first_name":"Robert","full_name":"Zillich, Robert"},{"id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-6990-7802","full_name":"Lemeshko, Mikhail","first_name":"Mikhail","last_name":"Lemeshko"},{"first_name":"Henrik","full_name":"Stapelfeldt, Henrik","last_name":"Stapelfeldt"}],"day":"19","main_file_link":[{"url":"https://arxiv.org/abs/1702.01977","open_access":"1"}],"oa":1,"publication_status":"published","volume":118,"issue":"20","article_processing_charge":"No","date_published":"2017-05-19T00:00:00Z","_id":"1109","abstract":[{"text":"Rotation of molecules embedded in He nanodroplets is explored by a combination of fs laser-induced alignment experiments and angulon quasiparticle theory. We demonstrate that at low fluence of the fs alignment pulse, the molecule and its solvation shell can be set into coherent collective rotation lasting long enough to form revivals. With increasing fluence, however, the revivals disappear -- instead, rotational dynamics as rapid as for an isolated molecule is observed during the first few picoseconds. Classical calculations trace this phenomenon to transient decoupling of the molecule from its He shell. Our results open novel opportunities for studying non-equilibrium solute-solvent dynamics and quantum thermalization. ","lang":"eng"}],"article_number":"203203","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","date_updated":"2023-09-20T11:36:17Z","external_id":{"isi":["000401664000005"]},"scopus_import":"1","year":"2017","oa_version":"Preprint","publist_id":"6260"},{"project":[{"_id":"25636330-B435-11E9-9278-68D0E5697425","name":"ROOTS Genome-wide Analysis of Root Traits","grant_number":"11-NSF-1070"}],"doi":"10.1103/PhysRevLett.118.095301","language":[{"iso":"eng"}],"title":"Quasiparticle approach to molecules interacting with quantum solvents","citation":{"mla":"Lemeshko, Mikhail. “Quasiparticle Approach to Molecules Interacting with Quantum Solvents.” Physical Review Letters, vol. 118, no. 9, 095301, American Physical Society, 2017, doi:10.1103/PhysRevLett.118.095301.","chicago":"Lemeshko, Mikhail. “Quasiparticle Approach to Molecules Interacting with Quantum Solvents.” Physical Review Letters. American Physical Society, 2017. https://doi.org/10.1103/PhysRevLett.118.095301.","ista":"Lemeshko M. 2017. Quasiparticle approach to molecules interacting with quantum solvents. Physical Review Letters. 118(9), 095301.","ieee":"M. Lemeshko, “Quasiparticle approach to molecules interacting with quantum solvents,” Physical Review Letters, vol. 118, no. 9. American Physical Society, 2017.","ama":"Lemeshko M. Quasiparticle approach to molecules interacting with quantum solvents. Physical Review Letters. 2017;118(9). doi:10.1103/PhysRevLett.118.095301","apa":"Lemeshko, M. (2017). Quasiparticle approach to molecules interacting with quantum solvents. Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.118.095301","short":"M. Lemeshko, Physical Review Letters 118 (2017)."},"type":"journal_article","author":[{"full_name":"Lemeshko, Mikhail","first_name":"Mikhail","last_name":"Lemeshko","orcid":"0000-0002-6990-7802","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87"}],"day":"27","isi":1,"publisher":"American Physical Society","intvolume":" 118","status":"public","quality_controlled":"1","department":[{"_id":"MiLe"}],"publication":"Physical Review Letters","date_created":"2018-12-11T11:50:15Z","month":"02","publication_identifier":{"issn":["00319007"]},"date_updated":"2023-09-20T11:31:22Z","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","external_id":{"isi":["000404769200006"]},"year":"2017","oa_version":"Submitted Version","publist_id":"6243","oa":1,"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1610.01604"}],"publication_status":"published","volume":118,"issue":"9","article_processing_charge":"No","_id":"1119","abstract":[{"lang":"eng","text":"Understanding the behavior of molecules interacting with superfluid helium represents a formidable challenge and, in general, requires approaches relying on large-scale numerical simulations. Here we demonstrate that experimental data collected over the last 20 years provide evidence that molecules immersed in superfluid helium form recently-predicted angulon quasiparticles [Phys. Rev. Lett. 114, 203001 (2015)]. Most importantly, casting the many-body problem in terms of angulons amounts to a drastic simplification and yields effective molecular moments of inertia as straightforward analytic solutions of a simple microscopic Hamiltonian. The outcome of the angulon theory is in good agreement with experiment for a broad range of molecular impurities, from heavy to medium-mass to light species. These results pave the way to understanding molecular rotation in liquid and crystalline phases in terms of the angulon quasiparticle."}],"date_published":"2017-02-27T00:00:00Z","article_number":"095301"},{"volume":95,"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1610.04908"}],"oa":1,"publication_status":"published","_id":"1120","abstract":[{"lang":"eng","text":"The existence of a self-localization transition in the polaron problem has been under an active debate ever since Landau suggested it 83 years ago. Here we reveal the self-localization transition for the rotational analogue of the polaron -- the angulon quasiparticle. We show that, unlike for the polarons, self-localization of angulons occurs at finite impurity-bath coupling already at the mean-field level. The transition is accompanied by the spherical-symmetry breaking of the angulon ground state and a discontinuity in the first derivative of the ground-state energy. Moreover, the type of the symmetry breaking is dictated by the symmetry of the microscopic impurity-bath interaction, which leads to a number of distinct self-localized states. The predicted effects can potentially be addressed in experiments on cold molecules trapped in superfluid helium droplets and ultracold quantum gases, as well as on electronic excitations in solids and Bose-Einstein condensates. "}],"date_published":"2017-03-06T00:00:00Z","article_number":"033608","issue":"3","article_processing_charge":"No","publication_identifier":{"issn":["24699926"]},"date_updated":"2023-09-20T11:30:58Z","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","external_id":{"isi":["000395981900009"]},"scopus_import":"1","year":"2017","oa_version":"Published Version","publist_id":"6242","intvolume":" 95","status":"public","quality_controlled":"1","department":[{"_id":"MiLe"},{"_id":"RoSe"}],"publication":"Physical Review A","isi":1,"publisher":"American Physical Society","date_created":"2018-12-11T11:50:15Z","month":"03","doi":"10.1103/PhysRevA.95.033608","language":[{"iso":"eng"}],"related_material":{"record":[{"id":"8958","relation":"dissertation_contains","status":"public"}]},"project":[{"_id":"25C6DC12-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","grant_number":"694227","name":"Analysis of quantum many-body systems"},{"_id":"25C878CE-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"Structure of the Excitation Spectrum for Many-Body Quantum Systems","grant_number":"P27533_N27"},{"_id":"26031614-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"Quantum rotations in the presence of a many-body environment","grant_number":"P29902"}],"type":"journal_article","author":[{"last_name":"Li","full_name":"Li, Xiang","first_name":"Xiang","id":"4B7E523C-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Seiringer, Robert","first_name":"Robert","last_name":"Seiringer","id":"4AFD0470-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-6781-0521"},{"orcid":"0000-0002-6990-7802","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","last_name":"Lemeshko","first_name":"Mikhail","full_name":"Lemeshko, Mikhail"}],"day":"06","title":"Angular self-localization of impurities rotating in a bosonic bath","ec_funded":1,"citation":{"mla":"Li, Xiang, et al. “Angular Self-Localization of Impurities Rotating in a Bosonic Bath.” Physical Review A, vol. 95, no. 3, 033608, American Physical Society, 2017, doi:10.1103/PhysRevA.95.033608.","ista":"Li X, Seiringer R, Lemeshko M. 2017. Angular self-localization of impurities rotating in a bosonic bath. Physical Review A. 95(3), 033608.","ieee":"X. Li, R. Seiringer, and M. Lemeshko, “Angular self-localization of impurities rotating in a bosonic bath,” Physical Review A, vol. 95, no. 3. American Physical Society, 2017.","chicago":"Li, Xiang, Robert Seiringer, and Mikhail Lemeshko. “Angular Self-Localization of Impurities Rotating in a Bosonic Bath.” Physical Review A. American Physical Society, 2017. https://doi.org/10.1103/PhysRevA.95.033608.","apa":"Li, X., Seiringer, R., & Lemeshko, M. (2017). Angular self-localization of impurities rotating in a bosonic bath. Physical Review A. American Physical Society. https://doi.org/10.1103/PhysRevA.95.033608","ama":"Li X, Seiringer R, Lemeshko M. Angular self-localization of impurities rotating in a bosonic bath. Physical Review A. 2017;95(3). doi:10.1103/PhysRevA.95.033608","short":"X. Li, R. Seiringer, M. Lemeshko, Physical Review A 95 (2017)."}},{"scopus_import":"1","external_id":{"isi":["000394667600003"]},"date_updated":"2023-09-20T11:30:08Z","user_id":"c635000d-4b10-11ee-a964-aac5a93f6ac1","publication_identifier":{"issn":["00319007"]},"publist_id":"6225","year":"2017","oa_version":"Submitted Version","volume":118,"publication_status":"published","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1612.02820"}],"oa":1,"article_number":"085302","_id":"1133","date_published":"2017-02-22T00:00:00Z","abstract":[{"text":"It is a common knowledge that an effective interaction of a quantum impurity with an electromagnetic field can be screened by surrounding charge carriers, whether mobile or static. Here we demonstrate that very strong, \"anomalous\" screening can take place in the presence of a neutral, weakly polarizable environment, due to an exchange of orbital angular momentum between the impurity and the bath. Furthermore, we show that it is possible to generalize all phenomena related to isolated impurities in an external field to the case when a many-body environment is present, by casting the problem in terms of the angulon quasiparticle. As a result, the relevant observables such as the effective Rabi frequency, geometric phase, and impurity spatial alignment are straightforward to evaluate in terms of a single parameter: the angular-momentum-dependent screening factor.","lang":"eng"}],"article_processing_charge":"No","issue":"8","language":[{"iso":"eng"}],"doi":"10.1103/PhysRevLett.118.085302","project":[{"_id":"25681D80-B435-11E9-9278-68D0E5697425","call_identifier":"FP7","name":"International IST Postdoc Fellowship Programme","grant_number":"291734"},{"_id":"26031614-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"Quantum rotations in the presence of a many-body environment","grant_number":"P29902"}],"day":"22","type":"journal_article","author":[{"last_name":"Yakaboylu","full_name":"Yakaboylu, Enderalp","first_name":"Enderalp","id":"38CB71F6-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-5973-0874"},{"id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-6990-7802","first_name":"Mikhail","full_name":"Lemeshko, Mikhail","last_name":"Lemeshko"}],"citation":{"short":"E. Yakaboylu, M. Lemeshko, Physical Review Letters 118 (2017).","ama":"Yakaboylu E, Lemeshko M. Anomalous screening of quantum impurities by a neutral environment. Physical Review Letters. 2017;118(8). doi:10.1103/PhysRevLett.118.085302","apa":"Yakaboylu, E., & Lemeshko, M. (2017). Anomalous screening of quantum impurities by a neutral environment. Physical Review Letters. American Physical Society. https://doi.org/10.1103/PhysRevLett.118.085302","chicago":"Yakaboylu, Enderalp, and Mikhail Lemeshko. “Anomalous Screening of Quantum Impurities by a Neutral Environment.” Physical Review Letters. American Physical Society, 2017. https://doi.org/10.1103/PhysRevLett.118.085302.","ieee":"E. Yakaboylu and M. Lemeshko, “Anomalous screening of quantum impurities by a neutral environment,” Physical Review Letters, vol. 118, no. 8. American Physical Society, 2017.","ista":"Yakaboylu E, Lemeshko M. 2017. Anomalous screening of quantum impurities by a neutral environment. Physical Review Letters. 118(8), 085302.","mla":"Yakaboylu, Enderalp, and Mikhail Lemeshko. “Anomalous Screening of Quantum Impurities by a Neutral Environment.” Physical Review Letters, vol. 118, no. 8, 085302, American Physical Society, 2017, doi:10.1103/PhysRevLett.118.085302."},"ec_funded":1,"title":"Anomalous screening of quantum impurities by a neutral environment","publication":"Physical Review Letters","department":[{"_id":"MiLe"}],"quality_controlled":"1","intvolume":" 118","status":"public","publisher":"American Physical Society","isi":1,"month":"02","date_created":"2018-12-11T11:50:19Z"}]