[{"main_file_link":[{"url":"http://arxiv.org/abs/1502.03447","open_access":"1"}],"volume":114,"date_created":"2018-12-11T11:54:09Z","month":"05","date_updated":"2025-09-23T10:40:28Z","author":[{"full_name":"Schmidt, Richard","last_name":"Schmidt","first_name":"Richard"},{"orcid":"0000-0002-6990-7802","first_name":"Mikhail","last_name":"Lemeshko","id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","full_name":"Lemeshko, Mikhail"}],"oa":1,"publisher":"American Physical Society","intvolume":"       114","language":[{"iso":"eng"}],"publication":"Physical Review Letters","isi":1,"issue":"20","status":"public","date_published":"2015-05-18T00:00:00Z","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","publist_id":"5293","doi":"10.1103/PhysRevLett.114.203001","abstract":[{"lang":"eng","text":"We develop a microscopic theory describing a quantum impurity whose rotational degree of freedom is coupled to a many-particle bath. We approach the problem by introducing the concept of an “angulon”—a quantum rotor dressed by a quantum field—and reveal its quasiparticle properties using a combination of variational and diagrammatic techniques. Our theory predicts renormalization of the impurity rotational structure, such as that observed in experiments with molecules in superfluid helium droplets, in terms of a rotational Lamb shift induced by the many-particle environment. Furthermore, we discover a rich many-body-induced fine structure, emerging in rotational spectra due to a redistribution of angular momentum within the quantum many-body system."}],"citation":{"ieee":"R. Schmidt and M. Lemeshko, “Rotation of quantum impurities in the presence of a many-body environment,” <i>Physical Review Letters</i>, vol. 114, no. 20. American Physical Society, 2015.","apa":"Schmidt, R., &#38; Lemeshko, M. (2015). Rotation of quantum impurities in the presence of a many-body environment. <i>Physical Review Letters</i>. American Physical Society. <a href=\"https://doi.org/10.1103/PhysRevLett.114.203001\">https://doi.org/10.1103/PhysRevLett.114.203001</a>","ista":"Schmidt R, Lemeshko M. 2015. Rotation of quantum impurities in the presence of a many-body environment. Physical Review Letters. 114(20), 203001.","short":"R. Schmidt, M. Lemeshko, Physical Review Letters 114 (2015).","ama":"Schmidt R, Lemeshko M. Rotation of quantum impurities in the presence of a many-body environment. <i>Physical Review Letters</i>. 2015;114(20). doi:<a href=\"https://doi.org/10.1103/PhysRevLett.114.203001\">10.1103/PhysRevLett.114.203001</a>","chicago":"Schmidt, Richard, and Mikhail Lemeshko. “Rotation of Quantum Impurities in the Presence of a Many-Body Environment.” <i>Physical Review Letters</i>. American Physical Society, 2015. <a href=\"https://doi.org/10.1103/PhysRevLett.114.203001\">https://doi.org/10.1103/PhysRevLett.114.203001</a>.","mla":"Schmidt, Richard, and Mikhail Lemeshko. “Rotation of Quantum Impurities in the Presence of a Many-Body Environment.” <i>Physical Review Letters</i>, vol. 114, no. 20, 203001, American Physical Society, 2015, doi:<a href=\"https://doi.org/10.1103/PhysRevLett.114.203001\">10.1103/PhysRevLett.114.203001</a>."},"scopus_import":"1","_id":"1813","arxiv":1,"article_number":"203001","article_processing_charge":"No","type":"journal_article","year":"2015","title":"Rotation of quantum impurities in the presence of a many-body environment","quality_controlled":"1","day":"18","department":[{"_id":"MiLe"}],"publication_status":"published","corr_author":"1","external_id":{"isi":["000354969900003"],"arxiv":["1502.03447"]},"oa_version":"Preprint"}]