Angle-resolved study of density waves, superconductivity and pseudogap in two dimensions

Abstract
Weakly correlated electrons on a square lattice are studied by angle-resolved functional renormalization group. Upon renormalization the interaction starts to depend on monienta and has pole-like solutions near the doping-dependent critical scale. Near half-filling this critical scale is the pseudogap temperature T^*. In the overdoped regime the critical scale is the mean-field like critical temperature for d-wave superconductivity.