[{"user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","year":"2023","oa_version":"Preprint","date_updated":"2025-09-09T12:45:32Z","project":[{"grant_number":"M02641","_id":"26986C82-B435-11E9-9278-68D0E5697425","name":"A path-integral approach to composite impurities","call_identifier":"FWF"},{"_id":"26B96266-B435-11E9-9278-68D0E5697425","grant_number":"M02751","name":"Algebro-Geometric Applications of Factorization Homology","call_identifier":"FWF"},{"grant_number":"P29902","_id":"26031614-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"Quantum rotations in the presence of a many-body environment"},{"name":"Angulon: physics and applications of a new quasiparticle","call_identifier":"H2020","_id":"2688CF98-B435-11E9-9278-68D0E5697425","grant_number":"801770"}],"date_published":"2023-07-15T00:00:00Z","publisher":"American Physical Society","type":"journal_article","day":"15","issue":"4","status":"public","doi":"10.1103/PhysRevB.108.045115","article_type":"original","arxiv":1,"citation":{"ista":"Bighin G, Ho QP, Lemeshko M, Tscherbul TV. 2023. Diagrammatic Monte Carlo for electronic correlation in molecules: High-order many-body perturbation theory with low scaling. Physical Review B. 108(4), 045115.","chicago":"Bighin, Giacomo, Quoc P Ho, Mikhail Lemeshko, and T. V. Tscherbul. “Diagrammatic Monte Carlo for Electronic Correlation in Molecules: High-Order Many-Body Perturbation Theory with Low Scaling.” <i>Physical Review B</i>. American Physical Society, 2023. <a href=\"https://doi.org/10.1103/PhysRevB.108.045115\">https://doi.org/10.1103/PhysRevB.108.045115</a>.","apa":"Bighin, G., Ho, Q. P., Lemeshko, M., &#38; Tscherbul, T. V. (2023). Diagrammatic Monte Carlo for electronic correlation in molecules: High-order many-body perturbation theory with low scaling. <i>Physical Review B</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevB.108.045115\">https://doi.org/10.1103/PhysRevB.108.045115</a>","ama":"Bighin G, Ho QP, Lemeshko M, Tscherbul TV. Diagrammatic Monte Carlo for electronic correlation in molecules: High-order many-body perturbation theory with low scaling. <i>Physical Review B</i>. 2023;108(4). doi:<a href=\"https://doi.org/10.1103/PhysRevB.108.045115\">10.1103/PhysRevB.108.045115</a>","ieee":"G. Bighin, Q. P. Ho, M. Lemeshko, and T. V. Tscherbul, “Diagrammatic Monte Carlo for electronic correlation in molecules: High-order many-body perturbation theory with low scaling,” <i>Physical Review B</i>, vol. 108, no. 4. American Physical Society, 2023.","short":"G. Bighin, Q.P. Ho, M. Lemeshko, T.V. Tscherbul, Physical Review B 108 (2023).","mla":"Bighin, Giacomo, et al. “Diagrammatic Monte Carlo for Electronic Correlation in Molecules: High-Order Many-Body Perturbation Theory with Low Scaling.” <i>Physical Review B</i>, vol. 108, no. 4, 045115, American Physical Society, 2023, doi:<a href=\"https://doi.org/10.1103/PhysRevB.108.045115\">10.1103/PhysRevB.108.045115</a>."},"article_processing_charge":"No","title":"Diagrammatic Monte Carlo for electronic correlation in molecules: High-order many-body perturbation theory with low scaling","month":"07","_id":"13966","ec_funded":1,"isi":1,"intvolume":"       108","author":[{"first_name":"Giacomo","id":"4CA96FD4-F248-11E8-B48F-1D18A9856A87","last_name":"Bighin","full_name":"Bighin, Giacomo","orcid":"0000-0001-8823-9777"},{"orcid":"0000-0001-6889-1418","id":"3DD82E3C-F248-11E8-B48F-1D18A9856A87","first_name":"Quoc P","full_name":"Ho, Quoc P","last_name":"Ho"},{"orcid":"0000-0002-6990-7802","full_name":"Lemeshko, Mikhail","last_name":"Lemeshko","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","first_name":"Mikhail"},{"first_name":"T. V.","full_name":"Tscherbul, T. V.","last_name":"Tscherbul"}],"scopus_import":"1","publication":"Physical Review B","main_file_link":[{"open_access":"1","url":"https://doi.org/10.48550/arXiv.2203.12666"}],"oa":1,"publication_identifier":{"eissn":["2469-9969"],"issn":["2469-9950"]},"acknowledgement":"We acknowledge stimulating discussions with Sergey Varganov, Artur Izmaylov, Jacek Kłos, Piotr Żuchowski, Dominika Zgid, Nikolay Prokof'ev, Boris Svistunov, Robert Parrish, and Andreas Heßelmann. G.B. and Q.P.H. acknowledge support from the Austrian Science Fund (FWF) under Projects No. M2641-N27 and No. M2751. M.L. acknowledges support by the FWF under Project No. P29902-N27, and by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON). T.V.T. was supported by the NSF CAREER award No. PHY-2045681. This work is supported by the German Research Foundation (DFG) under Germany's Excellence Strategy EXC2181/1-390900948 (the Heidelberg STRUCTURES Excellence Cluster). The authors acknowledge support by the state of Baden-Württemberg through bwHPC.","corr_author":"1","language":[{"iso":"eng"}],"external_id":{"arxiv":["2203.12666"],"isi":["001532067800001"]},"department":[{"_id":"MiLe"},{"_id":"TaHa"}],"date_created":"2023-08-06T22:01:10Z","publication_status":"published","abstract":[{"lang":"eng","text":"We present a low-scaling diagrammatic Monte Carlo approach to molecular correlation energies. Using combinatorial graph theory to encode many-body Hugenholtz diagrams, we sample the Møller-Plesset (MPn) perturbation series, obtaining accurate correlation energies up to n=5, with quadratic scaling in the number of basis functions. Our technique reduces the computational complexity of the molecular many-fermion correlation problem, opening up the possibility of low-scaling, accurate stochastic computations for a wide class of many-body systems described by Hugenholtz diagrams."}],"article_number":"045115","quality_controlled":"1","volume":108},{"oa":1,"publication_identifier":{"issn":["2542-4653"]},"acknowledgement":"We thank Lauriane Chomaz for useful discussions and comments on the manuscript. We also\r\nthank Ragheed Al Hyder for comments on the manuscript.\r\nG.B. acknowledges support from the Austrian Science Fund (FWF),\r\nunder Project No. M2641-N27. This work is supported by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy EXC2181/1-\r\n390900948 (the Heidelberg STRUCTURES Excellence Cluster). A. G. V. acknowledges support from the European Union’s Horizon 2020 research and innovation programme under the\r\nMarie Skłodowska-Curie Grant Agreement No. 754411. L.A.P.A acknowledges by the PNRR\r\nMUR project PE0000023 - NQSTI and the Deutsche Forschungsgemeinschaft (DFG, German\r\nResearch Foundation) under Germany’s Excellence Strategy - EXC - 2123 Quantum Frontiers390837967 and FOR2247.","file":[{"file_size":3543541,"date_created":"2023-12-11T07:42:04Z","file_id":"14669","creator":"dernst","file_name":"2023_SciPostPhysics_Volosniev.pdf","date_updated":"2023-12-11T07:42:04Z","checksum":"e664372a1fe9d628a9bb1d135ebab7d8","content_type":"application/pdf","success":1,"relation":"main_file","access_level":"open_access"}],"intvolume":"        15","isi":1,"ec_funded":1,"scopus_import":"1","file_date_updated":"2023-12-11T07:42:04Z","publication":"SciPost Physics","author":[{"id":"37D278BC-F248-11E8-B48F-1D18A9856A87","first_name":"Artem","last_name":"Volosniev","full_name":"Volosniev, Artem","orcid":"0000-0003-0393-5525"},{"orcid":"0000-0001-8823-9777","first_name":"Giacomo","id":"4CA96FD4-F248-11E8-B48F-1D18A9856A87","full_name":"Bighin, Giacomo","last_name":"Bighin"},{"first_name":"Luis","full_name":"Santos, Luis","last_name":"Santos"},{"first_name":"Luisllu A.","last_name":"Peña Ardila","full_name":"Peña Ardila, Luisllu A."}],"keyword":["General Physics and Astronomy"],"quality_controlled":"1","volume":15,"article_number":"232","abstract":[{"text":"We study the out-of-equilibrium quantum dynamics of dipolar polarons, i.e., impurities immersed in a dipolar Bose-Einstein condensate, after a quench of the impurity-boson interaction. We show that the dipolar nature of the condensate and of the impurity results in anisotropic relaxation dynamics, in particular, anisotropic dressing of the polaron. More relevantly for cold-atom setups, quench dynamics is strongly affected by the interplay between dipolar anisotropy and trap geometry. Our findings pave the way for simulating impurities in anisotropic media utilizing experiments with dipolar mixtures.","lang":"eng"}],"publication_status":"published","corr_author":"1","language":[{"iso":"eng"}],"date_created":"2023-12-10T13:03:07Z","external_id":{"arxiv":["2305.17969"],"isi":["001121864100003"]},"department":[{"_id":"MiLe"}],"tmp":{"short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"status":"public","issue":"6","day":"07","type":"journal_article","publisher":"SciPost Foundation","date_updated":"2025-09-09T13:34:34Z","oa_version":"Published Version","year":"2023","date_published":"2023-12-07T00:00:00Z","project":[{"_id":"26986C82-B435-11E9-9278-68D0E5697425","grant_number":"M02641","name":"A path-integral approach to composite impurities","call_identifier":"FWF"},{"name":"ISTplus - Postdoctoral Fellowships","call_identifier":"H2020","grant_number":"754411","_id":"260C2330-B435-11E9-9278-68D0E5697425"}],"has_accepted_license":"1","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","month":"12","title":"Non-equilibrium dynamics of dipolar polarons","_id":"14650","citation":{"ieee":"A. Volosniev, G. Bighin, L. Santos, and L. A. Peña Ardila, “Non-equilibrium dynamics of dipolar polarons,” <i>SciPost Physics</i>, vol. 15, no. 6. SciPost Foundation, 2023.","short":"A. Volosniev, G. Bighin, L. Santos, L.A. Peña Ardila, SciPost Physics 15 (2023).","mla":"Volosniev, Artem, et al. “Non-Equilibrium Dynamics of Dipolar Polarons.” <i>SciPost Physics</i>, vol. 15, no. 6, 232, SciPost Foundation, 2023, doi:<a href=\"https://doi.org/10.21468/scipostphys.15.6.232\">10.21468/scipostphys.15.6.232</a>.","ista":"Volosniev A, Bighin G, Santos L, Peña Ardila LA. 2023. Non-equilibrium dynamics of dipolar polarons. SciPost Physics. 15(6), 232.","chicago":"Volosniev, Artem, Giacomo Bighin, Luis Santos, and Luisllu A. Peña Ardila. “Non-Equilibrium Dynamics of Dipolar Polarons.” <i>SciPost Physics</i>. SciPost Foundation, 2023. <a href=\"https://doi.org/10.21468/scipostphys.15.6.232\">https://doi.org/10.21468/scipostphys.15.6.232</a>.","apa":"Volosniev, A., Bighin, G., Santos, L., &#38; Peña Ardila, L. A. (2023). Non-equilibrium dynamics of dipolar polarons. <i>SciPost Physics</i>. SciPost Foundation. <a href=\"https://doi.org/10.21468/scipostphys.15.6.232\">https://doi.org/10.21468/scipostphys.15.6.232</a>","ama":"Volosniev A, Bighin G, Santos L, Peña Ardila LA. Non-equilibrium dynamics of dipolar polarons. <i>SciPost Physics</i>. 2023;15(6). doi:<a href=\"https://doi.org/10.21468/scipostphys.15.6.232\">10.21468/scipostphys.15.6.232</a>"},"article_processing_charge":"No","ddc":["530"],"arxiv":1,"article_type":"original","doi":"10.21468/scipostphys.15.6.232"},{"publisher":"American Physical Society","day":"04","type":"journal_article","issue":"2","status":"public","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","oa_version":"Preprint","year":"2022","date_updated":"2025-04-14T08:57:11Z","project":[{"call_identifier":"FWF","name":"A path-integral approach to composite impurities","grant_number":"M02641","_id":"26986C82-B435-11E9-9278-68D0E5697425"}],"date_published":"2022-08-04T00:00:00Z","citation":{"short":"G. Bighin, A. Burchianti, F. Minardi, T. Macrì, Physical Review A 106 (2022).","mla":"Bighin, Giacomo, et al. “Impurity in a Heteronuclear Two-Component Bose Mixture.” <i>Physical Review A</i>, vol. 106, no. 2, 023301, American Physical Society, 2022, doi:<a href=\"https://doi.org/10.1103/PhysRevA.106.023301\">10.1103/PhysRevA.106.023301</a>.","ieee":"G. Bighin, A. Burchianti, F. Minardi, and T. Macrì, “Impurity in a heteronuclear two-component Bose mixture,” <i>Physical Review A</i>, vol. 106, no. 2. American Physical Society, 2022.","ama":"Bighin G, Burchianti A, Minardi F, Macrì T. Impurity in a heteronuclear two-component Bose mixture. <i>Physical Review A</i>. 2022;106(2). doi:<a href=\"https://doi.org/10.1103/PhysRevA.106.023301\">10.1103/PhysRevA.106.023301</a>","apa":"Bighin, G., Burchianti, A., Minardi, F., &#38; Macrì, T. (2022). Impurity in a heteronuclear two-component Bose mixture. <i>Physical Review A</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevA.106.023301\">https://doi.org/10.1103/PhysRevA.106.023301</a>","chicago":"Bighin, Giacomo, A. Burchianti, F. Minardi, and T. Macrì. “Impurity in a Heteronuclear Two-Component Bose Mixture.” <i>Physical Review A</i>. American Physical Society, 2022. <a href=\"https://doi.org/10.1103/PhysRevA.106.023301\">https://doi.org/10.1103/PhysRevA.106.023301</a>.","ista":"Bighin G, Burchianti A, Minardi F, Macrì T. 2022. Impurity in a heteronuclear two-component Bose mixture. Physical Review A. 106(2), 023301."},"article_processing_charge":"No","title":"Impurity in a heteronuclear two-component Bose mixture","month":"08","_id":"11997","doi":"10.1103/PhysRevA.106.023301","article_type":"original","arxiv":1,"main_file_link":[{"open_access":"1","url":"https://doi.org/10.48550/arXiv.2109.07451"}],"oa":1,"publication_identifier":{"eissn":["2469-9934"],"issn":["2469-9926"]},"acknowledgement":"We thank A. Simoni for providing the calculations of the intercomponent scattering lengths. We gratefully acknowledge stimulating discussions with L. A. Peña Ardila, R. Schmidt, H. Silva, V. Zampronio, and M. Prevedelli for careful reading. G.B. acknowledges support from the Austrian Science Fund (FWF) under Project No. M2641-N27. T.M. acknowledges CNPq for support through Bolsa de produtividade em Pesquisa No. 311079/2015-6. This work is supported by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy No. EXC2181/1-390900948 (the Heidelberg STRUCTURES Excellence Cluster). This work was supported by the Serrapilheira Institute (Grant No. Serra-1812-27802). We thank the High-Performance Computing Center (NPAD) at UFRN for providing computational resources.","isi":1,"intvolume":"       106","author":[{"orcid":"0000-0001-8823-9777","first_name":"Giacomo","id":"4CA96FD4-F248-11E8-B48F-1D18A9856A87","last_name":"Bighin","full_name":"Bighin, Giacomo"},{"first_name":"A.","last_name":"Burchianti","full_name":"Burchianti, A."},{"first_name":"F.","full_name":"Minardi, F.","last_name":"Minardi"},{"first_name":"T.","full_name":"Macrì, T.","last_name":"Macrì"}],"publication":"Physical Review A","scopus_import":"1","abstract":[{"text":"We study the fate of an impurity in an ultracold heteronuclear Bose mixture, focusing on the experimentally relevant case of a ⁴¹K - ⁸⁷Rb mixture, with the impurity in a ⁴¹K hyperfine state. Our paper provides a comprehensive description of an impurity in a BEC mixture with contact interactions across its phase diagram. We present results for the miscible and immiscible regimes, as well as for the impurity in a self-bound quantum droplet. Here, varying the interactions, we find exotic states where the impurity localizes either at the center or\r\nat the surface of the droplet. ","lang":"eng"}],"article_number":"023301","quality_controlled":"1","volume":106,"language":[{"iso":"eng"}],"department":[{"_id":"MiLe"}],"external_id":{"arxiv":["2109.07451"],"isi":["000837953600006"]},"date_created":"2022-08-28T22:02:00Z","publication_status":"published"},{"ddc":["530"],"doi":"10.1088/1367-2630/ac8113","article_type":"original","_id":"11998","title":"A simple model for high rotational excitations of molecules in a superfluid","month":"08","article_processing_charge":"Yes","citation":{"mla":"Cherepanov, Igor, et al. “A Simple Model for High Rotational Excitations of Molecules in a Superfluid.” <i>New Journal of Physics</i>, vol. 24, no. 7, 075004, IOP Publishing, 2022, doi:<a href=\"https://doi.org/10.1088/1367-2630/ac8113\">10.1088/1367-2630/ac8113</a>.","short":"I. Cherepanov, G. Bighin, C.A. Schouder, A.S. Chatterley, H. Stapelfeldt, M. Lemeshko, New Journal of Physics 24 (2022).","ieee":"I. Cherepanov, G. Bighin, C. A. Schouder, A. S. Chatterley, H. Stapelfeldt, and M. Lemeshko, “A simple model for high rotational excitations of molecules in a superfluid,” <i>New Journal of Physics</i>, vol. 24, no. 7. IOP Publishing, 2022.","apa":"Cherepanov, I., Bighin, G., Schouder, C. A., Chatterley, A. S., Stapelfeldt, H., &#38; Lemeshko, M. (2022). A simple model for high rotational excitations of molecules in a superfluid. <i>New Journal of Physics</i>. IOP Publishing. <a href=\"https://doi.org/10.1088/1367-2630/ac8113\">https://doi.org/10.1088/1367-2630/ac8113</a>","ama":"Cherepanov I, Bighin G, Schouder CA, Chatterley AS, Stapelfeldt H, Lemeshko M. A simple model for high rotational excitations of molecules in a superfluid. <i>New Journal of Physics</i>. 2022;24(7). doi:<a href=\"https://doi.org/10.1088/1367-2630/ac8113\">10.1088/1367-2630/ac8113</a>","ista":"Cherepanov I, Bighin G, Schouder CA, Chatterley AS, Stapelfeldt H, Lemeshko M. 2022. A simple model for high rotational excitations of molecules in a superfluid. New Journal of Physics. 24(7), 075004.","chicago":"Cherepanov, Igor, Giacomo Bighin, Constant A. Schouder, Adam S. Chatterley, Henrik Stapelfeldt, and Mikhail Lemeshko. “A Simple Model for High Rotational Excitations of Molecules in a Superfluid.” <i>New Journal of Physics</i>. IOP Publishing, 2022. <a href=\"https://doi.org/10.1088/1367-2630/ac8113\">https://doi.org/10.1088/1367-2630/ac8113</a>."},"project":[{"grant_number":"665385","_id":"2564DBCA-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","name":"International IST Doctoral Program"},{"grant_number":"801770","_id":"2688CF98-B435-11E9-9278-68D0E5697425","name":"Angulon: physics and applications of a new quasiparticle","call_identifier":"H2020"},{"call_identifier":"FWF","name":"A path-integral approach to composite impurities","_id":"26986C82-B435-11E9-9278-68D0E5697425","grant_number":"M02641"}],"has_accepted_license":"1","date_published":"2022-08-11T00:00:00Z","year":"2022","oa_version":"Published Version","date_updated":"2025-05-14T11:20:18Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","status":"public","tmp":{"short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"publisher":"IOP Publishing","type":"journal_article","day":"11","issue":"7","publication_status":"published","department":[{"_id":"MiLe"}],"external_id":{"isi":["000839216900001"]},"date_created":"2022-08-28T22:02:01Z","corr_author":"1","language":[{"iso":"eng"}],"volume":24,"quality_controlled":"1","abstract":[{"lang":"eng","text":"Recently it became possible to study highly excited rotational states of molecules in superfluid helium through nonadiabatic alignment experiments (Cherepanov et al 2021 Phys. Rev. A 104 L061303). This calls for theoretical approaches that go beyond explaining renormalized values of molecular spectroscopic constants, which suffices when only the lowest few rotational states are involved. As the first step in this direction, here we present a basic quantum mechanical model describing highly excited rotational states of molecules in superfluid helium nanodroplets. We show that a linear molecule immersed in a superfluid can be seen as an effective symmetric top, similar to the rotational structure of radicals, such as OH or NO, but with the angular momentum of the superfluid playing the role of the electronic angular momentum in free molecules. The simple theory sheds light onto what happens when the rotational angular momentum of the molecule increases beyond the lowest excited states accessible by infrared spectroscopy. In addition, the model allows to estimate the effective rotational and centrifugal distortion constants for a broad range of species and to explain the crossover between light and heavy molecules in superfluid 4He in terms of the many-body wavefunction structure. Some of the above mentioned insights can be acquired by analyzing a simple 2 × 2 matrix."}],"article_number":"075004","scopus_import":"1","author":[{"last_name":"Cherepanov","full_name":"Cherepanov, Igor","first_name":"Igor","id":"339C7E5A-F248-11E8-B48F-1D18A9856A87"},{"full_name":"Bighin, Giacomo","last_name":"Bighin","id":"4CA96FD4-F248-11E8-B48F-1D18A9856A87","first_name":"Giacomo","orcid":"0000-0001-8823-9777"},{"first_name":"Constant A.","full_name":"Schouder, Constant A.","last_name":"Schouder"},{"first_name":"Adam S.","last_name":"Chatterley","full_name":"Chatterley, Adam S."},{"first_name":"Henrik","last_name":"Stapelfeldt","full_name":"Stapelfeldt, Henrik"},{"orcid":"0000-0002-6990-7802","last_name":"Lemeshko","full_name":"Lemeshko, Mikhail","first_name":"Mikhail","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87"}],"file_date_updated":"2022-08-29T09:57:40Z","publication":"New Journal of Physics","ec_funded":1,"intvolume":"        24","isi":1,"acknowledgement":"IC acknowledges the support by the European Union's Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie Grant Agreement No. 665385. GB acknowledges support from the Austrian Science Fund (FWF), under Project No. M2461-N27 and from the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy EXC2181/1-390900948 (the Heidelberg STRUCTURES Excellence Cluster). ML acknowledges support by the Austrian Science Fund (FWF), under Project No. P29902-N27, and by the European Research Council (ERC) starting Grant No. 801770 (ANGULON). HS acknowledges support from the Independent Research Fund Denmark (Project No. 8021-00232B) and from the Villum Fonden through a Villum Investigator Grant No. 25886.","file":[{"access_level":"open_access","relation":"main_file","success":1,"date_updated":"2022-08-29T09:57:40Z","checksum":"10116a08d3489befc13dba2cc44490f1","content_type":"application/pdf","file_size":1912882,"creator":"alisjak","file_name":"2022_NewJournalofPhysics_Cherepanov.pdf","file_id":"12005","date_created":"2022-08-29T09:57:40Z"}],"publication_identifier":{"issn":["1367-2630"]},"oa":1},{"isi":1,"intvolume":"       104","ec_funded":1,"author":[{"last_name":"Cherepanov","full_name":"Cherepanov, Igor","id":"339C7E5A-F248-11E8-B48F-1D18A9856A87","first_name":"Igor"},{"orcid":"0000-0001-8823-9777","first_name":"Giacomo","id":"4CA96FD4-F248-11E8-B48F-1D18A9856A87","last_name":"Bighin","full_name":"Bighin, Giacomo"},{"full_name":"Schouder, Constant A.","last_name":"Schouder","first_name":"Constant A."},{"first_name":"Adam S.","last_name":"Chatterley","full_name":"Chatterley, Adam S."},{"first_name":"Simon H.","full_name":"Albrechtsen, Simon H.","last_name":"Albrechtsen"},{"first_name":"Alberto Viñas","full_name":"Muñoz, Alberto Viñas","last_name":"Muñoz"},{"first_name":"Lars","full_name":"Christiansen, Lars","last_name":"Christiansen"},{"first_name":"Henrik","last_name":"Stapelfeldt","full_name":"Stapelfeldt, Henrik"},{"full_name":"Lemeshko, Mikhail","last_name":"Lemeshko","first_name":"Mikhail","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0002-6990-7802"}],"scopus_import":"1","publication":"Physical Review A","oa":1,"publication_identifier":{"eissn":["2469-9934"],"issn":["2469-9926"]},"acknowledgement":"I.C. acknowledges the support by the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie Grant Agreement No. 665385. G.B. acknowledges support from the Austrian Science Fund (FWF), under project No. M2461-N27. M.L. acknowledges support by the Austrian Science Fund (FWF), under project No. P29902-N27, and by the European Research Council (ERC) Starting Grant No. 801770 (ANGULON). H.S acknowledges support from the European Research Council-AdG (Project No. 320459, DropletControl) and from The Villum Foundation through a Villum Investigator grant no. 25886.","main_file_link":[{"open_access":"1","url":"http://128.84.4.18/abs/2107.00468"}],"publication_status":"published","corr_author":"1","language":[{"iso":"eng"}],"date_created":"2022-01-16T23:01:29Z","external_id":{"arxiv":["2107.00468"],"isi":["000739618300001"]},"department":[{"_id":"MiLe"}],"quality_controlled":"1","volume":104,"article_number":"L061303","abstract":[{"lang":"eng","text":"We combine experimental and theoretical approaches to explore excited rotational states of molecules embedded in helium nanodroplets using CS2 and I2 as examples. Laser-induced nonadiabatic molecular alignment is employed to measure spectral lines for rotational states extending beyond those initially populated at the 0.37 K droplet temperature. We construct a simple quantum-mechanical model, based on a linear rotor coupled to a single-mode bosonic bath, to determine the rotational energy structure in its entirety. The calculated and measured spectral lines are in good agreement. We show that the effect of the surrounding superfluid on molecular rotation can be rationalized by a single quantity, the angular momentum, transferred from the molecule to the droplet."}],"date_updated":"2025-03-31T16:00:55Z","year":"2021","oa_version":"Preprint","date_published":"2021-12-30T00:00:00Z","project":[{"name":"Quantum rotations in the presence of a many-body environment","call_identifier":"FWF","_id":"26031614-B435-11E9-9278-68D0E5697425","grant_number":"P29902"},{"_id":"2688CF98-B435-11E9-9278-68D0E5697425","grant_number":"801770","call_identifier":"H2020","name":"Angulon: physics and applications of a new quasiparticle"},{"grant_number":"665385","_id":"2564DBCA-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","name":"International IST Doctoral Program"},{"name":"A path-integral approach to composite impurities","call_identifier":"FWF","grant_number":"M02641","_id":"26986C82-B435-11E9-9278-68D0E5697425"}],"user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","status":"public","issue":"6","day":"30","type":"journal_article","publisher":"American Physical Society","arxiv":1,"article_type":"original","doi":"10.1103/PhysRevA.104.L061303","month":"12","title":"Excited rotational states of molecules in a superfluid","_id":"10631","citation":{"ista":"Cherepanov I, Bighin G, Schouder CA, Chatterley AS, Albrechtsen SH, Muñoz AV, Christiansen L, Stapelfeldt H, Lemeshko M. 2021. Excited rotational states of molecules in a superfluid. Physical Review A. 104(6), L061303.","chicago":"Cherepanov, Igor, Giacomo Bighin, Constant A. Schouder, Adam S. Chatterley, Simon H. Albrechtsen, Alberto Viñas Muñoz, Lars Christiansen, Henrik Stapelfeldt, and Mikhail Lemeshko. “Excited Rotational States of Molecules in a Superfluid.” <i>Physical Review A</i>. American Physical Society, 2021. <a href=\"https://doi.org/10.1103/PhysRevA.104.L061303\">https://doi.org/10.1103/PhysRevA.104.L061303</a>.","apa":"Cherepanov, I., Bighin, G., Schouder, C. A., Chatterley, A. S., Albrechtsen, S. H., Muñoz, A. V., … Lemeshko, M. (2021). Excited rotational states of molecules in a superfluid. <i>Physical Review A</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevA.104.L061303\">https://doi.org/10.1103/PhysRevA.104.L061303</a>","ama":"Cherepanov I, Bighin G, Schouder CA, et al. Excited rotational states of molecules in a superfluid. <i>Physical Review A</i>. 2021;104(6). doi:<a href=\"https://doi.org/10.1103/PhysRevA.104.L061303\">10.1103/PhysRevA.104.L061303</a>","ieee":"I. Cherepanov <i>et al.</i>, “Excited rotational states of molecules in a superfluid,” <i>Physical Review A</i>, vol. 104, no. 6. American Physical Society, 2021.","short":"I. Cherepanov, G. Bighin, C.A. Schouder, A.S. Chatterley, S.H. Albrechtsen, A.V. Muñoz, L. Christiansen, H. Stapelfeldt, M. Lemeshko, Physical Review A 104 (2021).","mla":"Cherepanov, Igor, et al. “Excited Rotational States of Molecules in a Superfluid.” <i>Physical Review A</i>, vol. 104, no. 6, L061303, American Physical Society, 2021, doi:<a href=\"https://doi.org/10.1103/PhysRevA.104.L061303\">10.1103/PhysRevA.104.L061303</a>."},"article_processing_charge":"No"},{"ddc":["530"],"article_type":"original","doi":"10.1088/1367-2630/abae44","_id":"8644","month":"09","title":"Detecting composite orders in layered models via machine learning","article_processing_charge":"No","related_material":{"record":[{"status":"public","relation":"dissertation_contains","id":"10759"}]},"citation":{"mla":"Rzadkowski, Wojciech, et al. “Detecting Composite Orders in Layered Models via Machine Learning.” <i>New Journal of Physics</i>, vol. 22, no. 9, 093026, IOP Publishing, 2020, doi:<a href=\"https://doi.org/10.1088/1367-2630/abae44\">10.1088/1367-2630/abae44</a>.","short":"W. Rzadkowski, N. Defenu, S. Chiacchiera, A. Trombettoni, G. Bighin, New Journal of Physics 22 (2020).","ieee":"W. Rzadkowski, N. Defenu, S. Chiacchiera, A. Trombettoni, and G. Bighin, “Detecting composite orders in layered models via machine learning,” <i>New Journal of Physics</i>, vol. 22, no. 9. IOP Publishing, 2020.","ama":"Rzadkowski W, Defenu N, Chiacchiera S, Trombettoni A, Bighin G. Detecting composite orders in layered models via machine learning. <i>New Journal of Physics</i>. 2020;22(9). doi:<a href=\"https://doi.org/10.1088/1367-2630/abae44\">10.1088/1367-2630/abae44</a>","apa":"Rzadkowski, W., Defenu, N., Chiacchiera, S., Trombettoni, A., &#38; Bighin, G. (2020). Detecting composite orders in layered models via machine learning. <i>New Journal of Physics</i>. IOP Publishing. <a href=\"https://doi.org/10.1088/1367-2630/abae44\">https://doi.org/10.1088/1367-2630/abae44</a>","chicago":"Rzadkowski, Wojciech, N Defenu, S Chiacchiera, A Trombettoni, and Giacomo Bighin. “Detecting Composite Orders in Layered Models via Machine Learning.” <i>New Journal of Physics</i>. IOP Publishing, 2020. <a href=\"https://doi.org/10.1088/1367-2630/abae44\">https://doi.org/10.1088/1367-2630/abae44</a>.","ista":"Rzadkowski W, Defenu N, Chiacchiera S, Trombettoni A, Bighin G. 2020. Detecting composite orders in layered models via machine learning. New Journal of Physics. 22(9), 093026."},"has_accepted_license":"1","project":[{"grant_number":"665385","_id":"2564DBCA-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","name":"International IST Doctoral Program"},{"_id":"05A235A0-7A3F-11EA-A408-12923DDC885E","grant_number":"25681","name":"Analytic and machine learning approaches to composite quantum impurities"},{"name":"A path-integral approach to composite impurities","call_identifier":"FWF","grant_number":"M02641","_id":"26986C82-B435-11E9-9278-68D0E5697425"}],"date_published":"2020-09-01T00:00:00Z","date_updated":"2026-04-07T14:20:12Z","oa_version":"Published Version","year":"2020","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","status":"public","tmp":{"short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","image":"/images/cc_by.png","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)"},"issue":"9","type":"journal_article","publisher":"IOP Publishing","day":"01","publication_status":"published","date_created":"2020-10-11T22:01:14Z","external_id":{"isi":["000573298000001"]},"department":[{"_id":"MiLe"}],"corr_author":"1","language":[{"iso":"eng"}],"volume":22,"quality_controlled":"1","article_number":"093026","abstract":[{"text":"Determining the phase diagram of systems consisting of smaller subsystems 'connected' via a tunable coupling is a challenging task relevant for a variety of physical settings. A general question is whether new phases, not present in the uncoupled limit, may arise. We use machine learning and a suitable quasidistance between different points of the phase diagram to study layered spin models, in which the spin variables constituting each of the uncoupled systems (to which we refer as layers) are coupled to each other via an interlayer coupling. In such systems, in general, composite order parameters involving spins of different layers may emerge as a consequence of the interlayer coupling. We focus on the layered Ising and Ashkin–Teller models as a paradigmatic case study, determining their phase diagram via the application of a machine learning algorithm to the Monte Carlo data. Remarkably our technique is able to correctly characterize all the system phases also in the case of hidden order parameters, i.e. order parameters whose expression in terms of the microscopic configurations would require additional preprocessing of the data fed to the algorithm. We correctly retrieve the three known phases of the Ashkin–Teller model with ferromagnetic couplings, including the phase described by a composite order parameter. For the bilayer and trilayer Ising models the phases we find are only the ferromagnetic and the paramagnetic ones. Within the approach we introduce, owing to the construction of convolutional neural networks, naturally suitable for layered image-like data with arbitrary number of layers, no preprocessing of the Monte Carlo data is needed, also with regard to its spatial structure. The physical meaning of our results is discussed and compared with analytical data, where available. Yet, the method can be used without any a priori knowledge of the phases one seeks to find and can be applied to other models and structures.","lang":"eng"}],"publication":"New Journal of Physics","file_date_updated":"2020-10-12T12:18:47Z","scopus_import":"1","author":[{"orcid":"0000-0002-1106-4419","first_name":"Wojciech","id":"48C55298-F248-11E8-B48F-1D18A9856A87","last_name":"Rzadkowski","full_name":"Rzadkowski, Wojciech"},{"full_name":"Defenu, N","last_name":"Defenu","first_name":"N"},{"last_name":"Chiacchiera","full_name":"Chiacchiera, S","first_name":"S"},{"full_name":"Trombettoni, A","last_name":"Trombettoni","first_name":"A"},{"last_name":"Bighin","full_name":"Bighin, Giacomo","id":"4CA96FD4-F248-11E8-B48F-1D18A9856A87","first_name":"Giacomo","orcid":"0000-0001-8823-9777"}],"isi":1,"intvolume":"        22","ec_funded":1,"file":[{"file_size":2725143,"file_id":"8650","date_created":"2020-10-12T12:18:47Z","file_name":"2020_NewJournalPhysics_Rzdkowski.pdf","creator":"dernst","date_updated":"2020-10-12T12:18:47Z","content_type":"application/pdf","checksum":"c9238fff422e7a957c3a0d559f756b3a","success":1,"relation":"main_file","access_level":"open_access"}],"acknowledgement":"We thank Gesualdo Delfino, Michele Fabrizio, Piero Ferrarese, Robert Konik, Christoph Lampert and Mikhail Lemeshko for stimulating discussions at various stages of this work. WR has received funding from the EU Horizon 2020 program under the Marie Skłodowska-Curie Grant Agreement No. 665385 and is a recipient of a DOC Fellowship of the Austrian Academy of Sciences. GB acknowledges support from the Austrian Science Fund (FWF), under project No. M2641-N27. ND acknowledges support by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) via Collaborative Research Center SFB 1225 (ISOQUANT)--project-id 273811115--and under Germany's Excellence Strategy 'EXC-2181/1-390900948' (the Heidelberg STRUCTURES Excellence Cluster).","publication_identifier":{"issn":["1367-2630"]},"oa":1},{"article_number":"164302","abstract":[{"lang":"eng","text":"Inspired by the possibility to experimentally manipulate and enhance chemical reactivity in helium nanodroplets, we investigate the effective interaction and the resulting correlations between two diatomic molecules immersed in a bath of bosons. By analogy with the bipolaron, we introduce the biangulon quasiparticle describing two rotating molecules that align with respect to each other due to the effective attractive interaction mediated by the excitations of the bath. We study this system in different parameter regimes and apply several theoretical approaches to describe its properties. Using a Born–Oppenheimer approximation, we investigate the dependence of the effective intermolecular interaction on the rotational state of the two molecules. In the strong-coupling regime, a product-state ansatz shows that the molecules tend to have a strong alignment in the ground state. To investigate the system in the weak-coupling regime, we apply a one-phonon excitation variational ansatz, which allows us to access the energy spectrum. In comparison to the angulon quasiparticle, the biangulon shows shifted angulon instabilities and an additional spectral instability, where resonant angular momentum transfer between the molecules and the bath takes place. These features are proposed as an experimentally observable signature for the formation of the biangulon quasiparticle. Finally, by using products of single angulon and bare impurity wave functions as basis states, we introduce a diagonalization scheme that allows us to describe the transition from two separated angulons to a biangulon as a function of the distance between the two molecules."}],"volume":152,"quality_controlled":"1","date_created":"2020-09-30T10:33:17Z","department":[{"_id":"MiLe"},{"_id":"RoSe"}],"external_id":{"arxiv":["1912.02658"],"pmid":["32357791"],"isi":["000530448300001"]},"corr_author":"1","language":[{"iso":"eng"}],"publication_status":"published","main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/1912.02658"}],"pmid":1,"acknowledgement":"We are grateful to Areg Ghazaryan for valuable discussions. M.L. acknowledges support from the Austrian Science Fund (FWF) under Project No. P29902-N27 and from the European Research Council (ERC) Starting Grant No. 801770 (ANGULON). G.B. acknowledges support from the Austrian Science Fund (FWF) under Project No. M2461-N27. A.D. acknowledges funding from the European Union’s Horizon 2020 research and innovation programme under the European Research Council (ERC) Grant Agreement No. 694227 and under the Marie Sklodowska-Curie Grant Agreement No. 836146. R.S. was supported by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany’s Excellence Strategy – EXC-2111 – 390814868.","oa":1,"publication_identifier":{"eissn":["1089-7690"],"issn":["0021-9606"]},"author":[{"full_name":"Li, Xiang","last_name":"Li","first_name":"Xiang","id":"4B7E523C-F248-11E8-B48F-1D18A9856A87"},{"orcid":"0000-0001-5973-0874","full_name":"Yakaboylu, Enderalp","last_name":"Yakaboylu","first_name":"Enderalp","id":"38CB71F6-F248-11E8-B48F-1D18A9856A87"},{"orcid":"0000-0001-8823-9777","full_name":"Bighin, Giacomo","last_name":"Bighin","first_name":"Giacomo","id":"4CA96FD4-F248-11E8-B48F-1D18A9856A87"},{"last_name":"Schmidt","full_name":"Schmidt, Richard","first_name":"Richard"},{"orcid":"0000-0002-6990-7802","last_name":"Lemeshko","full_name":"Lemeshko, Mikhail","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","first_name":"Mikhail"},{"orcid":"0000-0003-3146-6746","id":"4DA65CD0-F248-11E8-B48F-1D18A9856A87","first_name":"Andreas","last_name":"Deuchert","full_name":"Deuchert, Andreas"}],"publication":"The Journal of Chemical Physics","keyword":["Physical and Theoretical Chemistry","General Physics and Astronomy"],"isi":1,"intvolume":"       152","ec_funded":1,"article_processing_charge":"No","related_material":{"record":[{"status":"public","relation":"dissertation_contains","id":"8958"}]},"citation":{"apa":"Li, X., Yakaboylu, E., Bighin, G., Schmidt, R., Lemeshko, M., &#38; Deuchert, A. (2020). Intermolecular forces and correlations mediated by a phonon bath. <i>The Journal of Chemical Physics</i>. AIP Publishing. <a href=\"https://doi.org/10.1063/1.5144759\">https://doi.org/10.1063/1.5144759</a>","ama":"Li X, Yakaboylu E, Bighin G, Schmidt R, Lemeshko M, Deuchert A. Intermolecular forces and correlations mediated by a phonon bath. <i>The Journal of Chemical Physics</i>. 2020;152(16). doi:<a href=\"https://doi.org/10.1063/1.5144759\">10.1063/1.5144759</a>","ista":"Li X, Yakaboylu E, Bighin G, Schmidt R, Lemeshko M, Deuchert A. 2020. Intermolecular forces and correlations mediated by a phonon bath. The Journal of Chemical Physics. 152(16), 164302.","chicago":"Li, Xiang, Enderalp Yakaboylu, Giacomo Bighin, Richard Schmidt, Mikhail Lemeshko, and Andreas Deuchert. “Intermolecular Forces and Correlations Mediated by a Phonon Bath.” <i>The Journal of Chemical Physics</i>. AIP Publishing, 2020. <a href=\"https://doi.org/10.1063/1.5144759\">https://doi.org/10.1063/1.5144759</a>.","mla":"Li, Xiang, et al. “Intermolecular Forces and Correlations Mediated by a Phonon Bath.” <i>The Journal of Chemical Physics</i>, vol. 152, no. 16, 164302, AIP Publishing, 2020, doi:<a href=\"https://doi.org/10.1063/1.5144759\">10.1063/1.5144759</a>.","short":"X. Li, E. Yakaboylu, G. Bighin, R. Schmidt, M. Lemeshko, A. Deuchert, The Journal of Chemical Physics 152 (2020).","ieee":"X. Li, E. Yakaboylu, G. Bighin, R. Schmidt, M. Lemeshko, and A. Deuchert, “Intermolecular forces and correlations mediated by a phonon bath,” <i>The Journal of Chemical Physics</i>, vol. 152, no. 16. AIP Publishing, 2020."},"_id":"8587","month":"04","title":"Intermolecular forces and correlations mediated by a phonon bath","article_type":"original","doi":"10.1063/1.5144759","arxiv":1,"issue":"16","publisher":"AIP Publishing","type":"journal_article","day":"27","status":"public","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","date_published":"2020-04-27T00:00:00Z","project":[{"grant_number":"P29902","_id":"26031614-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"Quantum rotations in the presence of a many-body environment"},{"call_identifier":"H2020","name":"Angulon: physics and applications of a new quasiparticle","_id":"2688CF98-B435-11E9-9278-68D0E5697425","grant_number":"801770"},{"_id":"26986C82-B435-11E9-9278-68D0E5697425","grant_number":"M02641","name":"A path-integral approach to composite impurities","call_identifier":"FWF"},{"grant_number":"694227","_id":"25C6DC12-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","name":"Analysis of quantum many-body systems"}],"date_updated":"2026-04-08T07:26:09Z","year":"2020","oa_version":"Preprint"},{"day":"03","type":"journal_article","publisher":"American Physical Society","issue":"1","status":"public","user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd","year":"2020","oa_version":"Preprint","date_updated":"2026-04-16T08:21:58Z","date_published":"2020-07-03T00:00:00Z","project":[{"grant_number":"P29902","_id":"26031614-B435-11E9-9278-68D0E5697425","call_identifier":"FWF","name":"Quantum rotations in the presence of a many-body environment"},{"grant_number":"801770","_id":"2688CF98-B435-11E9-9278-68D0E5697425","call_identifier":"H2020","name":"Angulon: physics and applications of a new quasiparticle"},{"name":"A path-integral approach to composite impurities","call_identifier":"FWF","grant_number":"M02641","_id":"26986C82-B435-11E9-9278-68D0E5697425"},{"call_identifier":"H2020","name":"International IST Doctoral Program","_id":"2564DBCA-B435-11E9-9278-68D0E5697425","grant_number":"665385"}],"citation":{"short":"A.S. Chatterley, L. Christiansen, C.A. Schouder, A.V. Jørgensen, B. Shepperson, I. Cherepanov, G. Bighin, R.E. Zillich, M. Lemeshko, H. Stapelfeldt, Physical Review Letters 125 (2020).","mla":"Chatterley, Adam S., et al. “Rotational Coherence Spectroscopy of Molecules in Helium Nanodroplets: Reconciling the Time and the Frequency Domains.” <i>Physical Review Letters</i>, vol. 125, no. 1, 013001, American Physical Society, 2020, doi:<a href=\"https://doi.org/10.1103/PhysRevLett.125.013001\">10.1103/PhysRevLett.125.013001</a>.","ieee":"A. S. Chatterley <i>et al.</i>, “Rotational coherence spectroscopy of molecules in Helium nanodroplets: Reconciling the time and the frequency domains,” <i>Physical Review Letters</i>, vol. 125, no. 1. American Physical Society, 2020.","ama":"Chatterley AS, Christiansen L, Schouder CA, et al. Rotational coherence spectroscopy of molecules in Helium nanodroplets: Reconciling the time and the frequency domains. <i>Physical Review Letters</i>. 2020;125(1). doi:<a href=\"https://doi.org/10.1103/PhysRevLett.125.013001\">10.1103/PhysRevLett.125.013001</a>","apa":"Chatterley, A. S., Christiansen, L., Schouder, C. A., Jørgensen, A. V., Shepperson, B., Cherepanov, I., … Stapelfeldt, H. (2020). Rotational coherence spectroscopy of molecules in Helium nanodroplets: Reconciling the time and the frequency domains. <i>Physical Review Letters</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevLett.125.013001\">https://doi.org/10.1103/PhysRevLett.125.013001</a>","chicago":"Chatterley, Adam S., Lars Christiansen, Constant A. Schouder, Anders V. Jørgensen, Benjamin Shepperson, Igor Cherepanov, Giacomo Bighin, Robert E. Zillich, Mikhail Lemeshko, and Henrik Stapelfeldt. “Rotational Coherence Spectroscopy of Molecules in Helium Nanodroplets: Reconciling the Time and the Frequency Domains.” <i>Physical Review Letters</i>. American Physical Society, 2020. <a href=\"https://doi.org/10.1103/PhysRevLett.125.013001\">https://doi.org/10.1103/PhysRevLett.125.013001</a>.","ista":"Chatterley AS, Christiansen L, Schouder CA, Jørgensen AV, Shepperson B, Cherepanov I, Bighin G, Zillich RE, Lemeshko M, Stapelfeldt H. 2020. Rotational coherence spectroscopy of molecules in Helium nanodroplets: Reconciling the time and the frequency domains. Physical Review Letters. 125(1), 013001."},"article_processing_charge":"No","title":"Rotational coherence spectroscopy of molecules in Helium nanodroplets: Reconciling the time and the frequency domains","month":"07","_id":"8170","doi":"10.1103/PhysRevLett.125.013001","article_type":"original","arxiv":1,"main_file_link":[{"open_access":"1","url":"https://arxiv.org/abs/2006.02694"}],"publication_identifier":{"issn":["0031-9007"],"eissn":["1079-7114"]},"oa":1,"acknowledgement":"H. S. acknowledges support from the European Research Council-AdG (Project No. 320459, DropletControl)\r\nand from The Villum Foundation through a Villum Investigator Grant No. 25886. M. L. acknowledges support\r\nby the Austrian Science Fund (FWF), under Project No. P29902-N27, and by the European Research Council\r\n(ERC) Starting Grant No. 801770 (ANGULON). G. B. acknowledges support from the Austrian Science Fund\r\n(FWF), under Project No. M2641-N27. I. C. acknowledges support by the European Union’s Horizon 2020 research and\r\ninnovation programme under the Marie Skłodowska-Curie Grant Agreement No. 665385. Computational resources for\r\nthe PIMC simulations were provided by the division for scientific computing at the Johannes Kepler University.","pmid":1,"ec_funded":1,"isi":1,"intvolume":"       125","scopus_import":"1","author":[{"first_name":"Adam S.","full_name":"Chatterley, Adam S.","last_name":"Chatterley"},{"full_name":"Christiansen, Lars","last_name":"Christiansen","first_name":"Lars"},{"last_name":"Schouder","full_name":"Schouder, Constant A.","first_name":"Constant A."},{"first_name":"Anders V.","full_name":"Jørgensen, Anders V.","last_name":"Jørgensen"},{"last_name":"Shepperson","full_name":"Shepperson, Benjamin","first_name":"Benjamin"},{"last_name":"Cherepanov","full_name":"Cherepanov, Igor","id":"339C7E5A-F248-11E8-B48F-1D18A9856A87","first_name":"Igor"},{"full_name":"Bighin, Giacomo","last_name":"Bighin","first_name":"Giacomo","id":"4CA96FD4-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-8823-9777"},{"first_name":"Robert E.","last_name":"Zillich","full_name":"Zillich, Robert E."},{"last_name":"Lemeshko","full_name":"Lemeshko, Mikhail","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","first_name":"Mikhail","orcid":"0000-0002-6990-7802"},{"first_name":"Henrik","full_name":"Stapelfeldt, Henrik","last_name":"Stapelfeldt"}],"publication":"Physical Review Letters","abstract":[{"text":"Alignment of OCS, CS2, and I2 molecules embedded in helium nanodroplets is measured as a function\r\nof time following rotational excitation by a nonresonant, comparatively weak ps laser pulse. The distinct\r\npeaks in the power spectra, obtained by Fourier analysis, are used to determine the rotational, B, and\r\ncentrifugal distortion, D, constants. For OCS, B and D match the values known from IR spectroscopy. For\r\nCS2 and I2, they are the first experimental results reported. The alignment dynamics calculated from the\r\ngas-phase rotational Schrödinger equation, using the experimental in-droplet B and D values, agree in\r\ndetail with the measurement for all three molecules. The rotational spectroscopy technique for molecules in\r\nhelium droplets introduced here should apply to a range of molecules and complexes.","lang":"eng"}],"article_number":"013001","quality_controlled":"1","volume":125,"language":[{"iso":"eng"}],"external_id":{"isi":["000544526900006"],"arxiv":["2006.02694"],"pmid":["32678640"]},"department":[{"_id":"MiLe"}],"date_created":"2020-07-26T22:01:02Z","publication_status":"published"},{"article_processing_charge":"No","citation":{"ieee":"G. Bighin, N. Defenu, I. Nándori, L. Salasnich, and A. Trombettoni, “Berezinskii-Kosterlitz-Thouless paired phase in coupled XY models,” <i>Physical Review Letters</i>, vol. 123, no. 10. American Physical Society, 2019.","mla":"Bighin, Giacomo, et al. “Berezinskii-Kosterlitz-Thouless Paired Phase in Coupled XY Models.” <i>Physical Review Letters</i>, vol. 123, no. 10, 100601, American Physical Society, 2019, doi:<a href=\"https://doi.org/10.1103/physrevlett.123.100601\">10.1103/physrevlett.123.100601</a>.","short":"G. Bighin, N. Defenu, I. Nándori, L. Salasnich, A. Trombettoni, Physical Review Letters 123 (2019).","ista":"Bighin G, Defenu N, Nándori I, Salasnich L, Trombettoni A. 2019. Berezinskii-Kosterlitz-Thouless paired phase in coupled XY models. Physical Review Letters. 123(10), 100601.","chicago":"Bighin, Giacomo, Nicolò Defenu, István Nándori, Luca Salasnich, and Andrea Trombettoni. “Berezinskii-Kosterlitz-Thouless Paired Phase in Coupled XY Models.” <i>Physical Review Letters</i>. American Physical Society, 2019. <a href=\"https://doi.org/10.1103/physrevlett.123.100601\">https://doi.org/10.1103/physrevlett.123.100601</a>.","apa":"Bighin, G., Defenu, N., Nándori, I., Salasnich, L., &#38; Trombettoni, A. (2019). Berezinskii-Kosterlitz-Thouless paired phase in coupled XY models. <i>Physical Review Letters</i>. American Physical Society. <a href=\"https://doi.org/10.1103/physrevlett.123.100601\">https://doi.org/10.1103/physrevlett.123.100601</a>","ama":"Bighin G, Defenu N, Nándori I, Salasnich L, Trombettoni A. Berezinskii-Kosterlitz-Thouless paired phase in coupled XY models. <i>Physical Review Letters</i>. 2019;123(10). doi:<a href=\"https://doi.org/10.1103/physrevlett.123.100601\">10.1103/physrevlett.123.100601</a>"},"related_material":{"link":[{"relation":"press_release","url":"https://ist.ac.at/en/news/new-form-of-magnetism-found/","description":"News auf IST Website"}]},"_id":"6940","title":"Berezinskii-Kosterlitz-Thouless paired phase in coupled XY models","month":"09","doi":"10.1103/physrevlett.123.100601","article_type":"original","arxiv":1,"day":"06","publisher":"American Physical Society","type":"journal_article","issue":"10","status":"public","user_id":"4359f0d1-fa6c-11eb-b949-802e58b17ae8","project":[{"name":"A path-integral approach to composite impurities","call_identifier":"FWF","grant_number":"M02641","_id":"26986C82-B435-11E9-9278-68D0E5697425"}],"date_published":"2019-09-06T00:00:00Z","oa_version":"Preprint","year":"2019","date_updated":"2025-04-14T08:57:11Z","abstract":[{"text":"We study the effect of a linear tunneling coupling between two-dimensional systems, each separately\r\nexhibiting the topological Berezinskii-Kosterlitz-Thouless (BKT) transition. In the uncoupled limit, there\r\nare two phases: one where the one-body correlation functions are algebraically decaying and the other with\r\nexponential decay. When the linear coupling is turned on, a third BKT-paired phase emerges, in which one-body correlations are exponentially decaying, while two-body correlation functions exhibit power-law\r\ndecay. We perform numerical simulations in the paradigmatic case of two coupled XY models at finite\r\ntemperature, finding evidences that for any finite value of the interlayer coupling, the BKT-paired phase is\r\npresent. We provide a picture of the phase diagram using a renormalization group approach.","lang":"eng"}],"article_number":"100601","volume":123,"quality_controlled":"1","department":[{"_id":"MiLe"}],"external_id":{"isi":["000483587200004"],"arxiv":["1907.06253"]},"date_created":"2019-10-14T06:31:13Z","language":[{"iso":"eng"}],"publication_status":"published","main_file_link":[{"url":"https://arxiv.org/abs/1907.06253","open_access":"1"}],"acknowledgement":"We thank S. Chiacchiera, G. Delfino, N. Dupuis, T. Enss, M. Fabrizio and G. Gori for many stimulating discussions.\r\nG.B. acknowledges support from the Austrian Science Fund (FWF), under project No. M2461-N27. N.D. acknowledges\r\nsupport from Deutsche Forschungsgemeinschaft (DFG) under Germany’s Excellence Strategy EXC-2181/1 - 390900948 (the Heidelberg STRUCTURES Excellence Cluster) and from the DFG Collaborative Research Centre “SFB 1225 ISOQUANT”. Support from the CNR/MTA Italy-Hungary 2019-2021 Joint Project “Strongly interacting systems in confined geometries” is gratefully acknowledged.","oa":1,"publication_identifier":{"eissn":["1079-7114"],"issn":["0031-9007"]},"author":[{"orcid":"0000-0001-8823-9777","first_name":"Giacomo","id":"4CA96FD4-F248-11E8-B48F-1D18A9856A87","last_name":"Bighin","full_name":"Bighin, Giacomo"},{"first_name":"Nicolò","full_name":"Defenu, Nicolò","last_name":"Defenu"},{"last_name":"Nándori","full_name":"Nándori, István","first_name":"István"},{"first_name":"Luca","last_name":"Salasnich","full_name":"Salasnich, Luca"},{"full_name":"Trombettoni, Andrea","last_name":"Trombettoni","first_name":"Andrea"}],"scopus_import":"1","publication":"Physical Review Letters","isi":1,"intvolume":"       123"}]