{"year":"2015","publisher":"American Physical Society","scopus_import":1,"intvolume":"       114","oa_version":"Preprint","oa":1,"date_created":"2018-12-11T11:54:09Z","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","volume":114,"publist_id":"5293","quality_controlled":"1","title":"Rotation of quantum impurities in the presence of a many-body environment","status":"public","month":"05","date_updated":"2021-01-12T06:53:22Z","type":"journal_article","author":[{"first_name":"Richard","last_name":"Schmidt","full_name":"Schmidt, Richard"},{"id":"37CB05FA-F248-11E8-B48F-1D18A9856A87","full_name":"Lemeshko, Mikhail","last_name":"Lemeshko","first_name":"Mikhail","orcid":"0000-0002-6990-7802"}],"publication":"Physical Review Letters","day":"18","doi":"10.1103/PhysRevLett.114.203001","_id":"1813","article_number":"203001","language":[{"iso":"eng"}],"department":[{"_id":"MiLe"}],"abstract":[{"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.","lang":"eng"}],"main_file_link":[{"open_access":"1","url":"http://arxiv.org/abs/1502.03447"}],"publication_status":"published","date_published":"2015-05-18T00:00:00Z","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.","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>.","short":"R. Schmidt, M. Lemeshko, Physical Review Letters 114 (2015).","ista":"Schmidt R, Lemeshko M. 2015. Rotation of quantum impurities in the presence of a many-body environment. Physical Review Letters. 114(20), 203001.","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>","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>.","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>"},"issue":"20"}