Seminarium Optyczne

Abstract: Lev Landau's reduction of weakly interacting electronsintoquasiparticles - essentially renormalized but otherwise freeparticles- forms the basis for a standard model of condensed mattersystems.However, a theory to describe transport in stronglyinteractionsystems has been lacking. Moreover, the notion of "badmetals" hasbeen plausibly linked to "high temperature"superconductivity by PhilAnderson, which has formed a cental tenet foran understanding of thecuprates, for example. Despite multiple decadesof effort, there hasbeen no theoretically derived link between thetwo.Yet, a tremendous amount of advancement in exact andun-biasednumerical methods has been made just in the last 5-10 years.In thistalk I will review some of this work that sheds light into thegroundstate and transport properties of simple models forstronglycorrelated electrons. While much remains unresolved, I willgive astatus update and discuss a link between transport propertiesandsuperconductivity.