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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
CLASS:PUBLIC
DTSTART;TZID=Europe/Paris:20220414T110000
DTEND;TZID=Europe/Paris:20220414T120000
DTSTAMP:20220410T203700
UID:MEC-a91af177d3016ca20e5fc949836a894a@lps.u-psud.fr
CREATED:20220410
LAST-MODIFIED:20220410
PRIORITY:5
TRANSP:OPAQUE
SUMMARY:M.POLINI: Cavities, 2D materials, and some thoughts on superconductivity
DESCRIPTION:\n         \n\n\n\n	Photon-mediated effective electron-electron interactions (EEIs) have been known for a long time [1] to yield one of the harshest forms of non-Fermi-liquid states of matter which have been revealed so far. These EEIs have been recently revisited in the context of cavity-QED of strongly correlated electron systems. In particular, it has been predicted [2] that two-dimensional electron gases placed inside Terahertz cavities display an exotic form of superconductivity, known in the field of high-Tc superconductors as “Amperean” superconductivity [3].\n        I will discuss some recent unpublished results [4] on the possibility to engineer Amperean superconductivity in a graphene sheet embedded in an optical cavity, highlighting in particular subtleties associated with the difference between longitudinal and transverse electromagnetic fluctuations.\n\n[1] M. Yu. Reizer, Phys. Rev. B 39, 1602 (1989).\n[2] F. Schlawin, A. Cavalleri, and D. Jaksch, Phys. Rev. Lett. 122, 133602 (2019).\n[3] See e.g. P. A. Lee, Phys. Rev. X 4, 031017 (2014) and references therein.\n[4] A. De Pasquale, G. M. Andolina, F. M. D. Pellegrino, I. Torre, F. H. L. Koppens, and M. Polini, to be published.\n\n
URL:https://www.lps.u-psud.fr/events/polini-14042022/
ORGANIZER;CN=Andrej Meszaros:MAILTO:
CATEGORIES:Séminaire de la Théorie de la Matière Condensée
LOCATION:Moyen amphi (LPS) + ONLINE (Zoom)
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