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PRODID:UW-Madison-Physics-Events
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SEQUENCE:0
UID:UW-Physics-Event-2622
DTSTART:20120309T213000Z
DURATION:PT1H0M0S
DTSTAMP:20260412T150845Z
LAST-MODIFIED:20120308T215522Z
LOCATION:2241 Chamberlin Hall (coffee at 4:30 pm)
SUMMARY:Superconductivity from  Repulsive Interactions\, Physics Depar
 tment Colloquium\, Andrey Chubukov\, University of Wisconsin Departmen
 t of Physics
DESCRIPTION:The theory of superconductivity\, for which the Nobel Priz
 e was given in 1972\, named electron-phonon interaction as a glue that
  overcomes Coulomb repulsion and binds fermions into pairs which then 
 condense and super-conduct. I review recent and not so recent works ai
 ming to understand whether a nominally repulsive Coulomb interaction c
 an by itself give rise to a superconductivity. I will first discuss a 
 generic scenario of the pairing by electron-electron interaction\, put
  forward by Kohn and Luttinger back in 1965 in their attempt to explai
 n superfluidity in 3He\, and then move on to discuss modern studies of
  the electronic mechanisms of superconductivity in the cuprates\, Fe-p
 nictides\, and even in graphene.
URL:https://www.physics.wisc.edu/events/?id=2622
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