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METHOD:PUBLISH
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X-ORIGINAL-URL:https://www.lps.u-psud.fr/
X-WR-CALNAME:Laboratoire de physique des Solides
X-WR-CALDESC:
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X-PUBLISHED-TTL:PT1H
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BEGIN:VEVENT
CLASS:PUBLIC
DTSTART;TZID=Europe/Paris:20221122T110000
DTEND;TZID=Europe/Paris:20221122T120000
DTSTAMP:20221110T162700
UID:MEC-a3147b88259a8e5745ebd59394aee83e@lps.u-psud.fr
CREATED:20221110
LAST-MODIFIED:20221116
PRIORITY:5
TRANSP:OPAQUE
SUMMARY:M.ANDOLINA: Can deep sub-wavelength cavities induce Amperean superconductivity in a 2D material?
DESCRIPTION:\n	Amperean superconductivity is an exotic phenomenon stemming from attractive effective electron-electron interactions (EEEIs) mediated by a transverse gauge field. Originally introduced in the context of quantum spin liquids and high-Tc superconductors, Amperean superconductivity has been recently proposed to occur at temperatures on the order of 1-20 K in two-dimensional, parabolic-band, electron gases embedded inside deep sub-wavelength optical cavities.\n\nI will first generalize the microscopic theory of cavity-induced Amperean superconductivity to the case of graphene and then argue that this superconducting state cannot be achieved in the deep sub-wavelength regime. In the latter regime, indeed, a cavity induces only EEEIs between density fluctuations rather than the current-current interactions which are responsible for Amperean pairing.\n\n
URL:https://www.lps.u-psud.fr/en/events/m-andolina-tba/
CATEGORIES:Condensed Matter Theory Seminar
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