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TZID:Europe/Paris
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BEGIN:VEVENT
UID:1-560@lptms.universite-paris-saclay.fr
DTSTART:20171114T110000Z
DTEND:20171114T120000Z
DTSTAMP:20171105T194827Z
URL:http://www.lptms.universite-paris-saclay.fr/seminars/seminaire-du-lptm
 s-giacomo-mazza/
SUMMARY:Séminaire du LPTMS: Giacomo Mazza - LPTMS\, salle 201\, 2ème éta
 ge\, Bât 100\, Campus d'Orsay - 14 Nov 17 11:00
DESCRIPTION:Strong light-matter coupling: transient superconductivity in op
 tical stimulated systems and electronic properties inside optical cavities
 \nGiacomo Mazza (CPhT\, Ecole Polytechnique\, Université Paris-Saclay)\n\
 nThe interaction between light and matter has been intensively used for pr
 obing the properties of condensed matter systems. In the last years\, this
  paradigm evolved and the light-matter interaction has become a tool for s
 trongly modify the systems properties and accessing states of matter that 
 are not present (or hidden) in equilibrium conditions. In this talk I will
  discuss two different examples.\n\nIn the first case I will consider the 
 optical stimulation of solids by means of strong light pulses. A series of
  recent experiments reported the observations of light-induced modificatio
 n of the electronic properties suggestive of the formation of transient su
 perconducting states. Remarkably these transient states extend far above t
 he equilibrium critical temperatures and appear in different compounds\, a
 s cuprates and organics superconductors (fullerides) [1\,2]. I will disc
 uss from the theoretical point of view possible realisations of such trans
 ient superconductivity in simplified models for correlated superconductors
 . In particular\, I will start from the general case of superconductivity
  induced by a strong attractive interaction [3] and then move the more spe
 cific case of fullerides [4]. \n\n\nAs a second example I will consider t
 he electronic properties of materials placed inside high-finesse optical c
 avities\, where the vacuum electromagnetic field strongly interact with a 
 given electronic transition. I will discuss how the electronic properties 
 are modified by the light-matter coupling and how the latter can be used t
 o tune the electronic transport properties.\n\n\n\n&nbsp\;\nReferences:\n\
 n\n	[1] D. Fausti et al.\, Light-induced superconductivity in a stripe-ord
 ered cuprate\, Science 331\, 189 (2011)\n	[2] M. Mitrano et al.\, Possible
  light-induced superconductivity in K3C60 at high temperature\, Nature 530
 \, 461 (2016)\n	[3] G. Mazza\, From sudden quench to adiabatic dynamics in
  the attractive Hubbard model\, arXiv:1708.01096 \n	[4] G. Mazza and A. G
 eorges\, Nonequilibrium superconductivity in driven alkali-doped fulleride
 s\,  Phys.Rev.B 96\, 064515 (2017).\n\n
CATEGORIES:seminars
LOCATION:LPTMS\, salle 201\, 2ème étage\, Bât 100\, Campus d'Orsay\, 15 
 Rue Georges Clemenceau\, Orsay\, 91405\, France
GEO:48.698185;2.181768
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=15 Rue Georges Clemenceau\,
  Orsay\, 91405\, France;X-APPLE-RADIUS=100;X-TITLE=LPTMS\, salle 201\, 2è
 me étage\, Bât 100\, Campus d'Orsay:geo:48.698185,2.181768
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