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X-ORIGINAL-URL:https://www.lps.u-psud.fr/
X-WR-CALNAME:Laboratoire de physique des Solides
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BEGIN:VEVENT
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DTSTART;TZID=Europe/Paris:20220421T110000
DTEND;TZID=Europe/Paris:20220421T120000
DTSTAMP:20220414T144900
UID:MEC-86a1793f65aeef4aeef4b479fc9b2bca@lps.u-psud.fr
CREATED:20220414
LAST-MODIFIED:20220414
PRIORITY:5
TRANSP:OPAQUE
SUMMARY:S.FLORENS: Quantum field theory on a superconducting chip
DESCRIPTION:\nSuperconducting circuits are seen as a promising platform for engineering complex quantum states, either with the purpose of implementing large scale quantum algorithms, or to emulate quantum many-body problems of interest for physicists.\n\nWe investigate both experimentally and theoretically the possibility to realize quantum impurity models that provide not only bosonic analogs to the electronic Kondo effect, but also strong coupling regimes of quantum electrodynamics, equivalent to boosting the fine structure constant close to unity.\n\nAs a result, we evidence several interaction-driven effects that represent two sides of the same coin: i) A giant renormalization of the frequency of an artificial atom (the impurity) by vacuum fluctuations of the quantum field; ii) A broadband inelastic scattering of the external photons by the internal dynamics of the atom.\n\nWe also discuss critically the advantages and limitations of superconducting circuits for the exploration of many-body phenomena.\n\n
URL:https://www.lps.u-psud.fr/events/florens-21042022/
ORGANIZER;CN=Andrej Meszaros:MAILTO:
CATEGORIES:Séminaire de la Théorie de la Matière Condensée
LOCATION:Moyen amphi (LPS) + ONLINE (Zoom)
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