BEGIN:VCALENDAR VERSION:2.0 PRODID:Data::ICal 0.22 BEGIN:VEVENT DESCRIPTION:Andrey Chubukov\, University of Minnesota\n\n
In my talk\, I review recent and not so recent works aiming to understand whether a nomin ally repulsive Coulomb interaction can by itself give rise to a supercondu ctivity. \; I discuss a generic scenario of the pairing by electron-el ectron interaction\, put forward by Kohn and Luttinger back in 1965\, and  \;modern studies of \; the electronic mechanisms of superconducti vity in the lattice systems which model cuprates\, \; Fe-pnictides\, a nd \; doped graphene. \; I show that the pairing in all three clas ses of materials can be viewed as a lattice version of Kohn-Luttinger phys ics\, despite that the pairing symmetries are different. \; I discuss under what conditions the pairing occurs and rationalize the need to do &n bsp\;renormalization-group studies. \; I also discuss the interplay be tween superconductivity and density-wave instabilities.
\n DTSTART:20170210T203000Z LOCATION:Physics Building\, Room 204 SUMMARY:Superconductivity from repulsion END:VEVENT END:VCALENDAR