Electric polarization in correlated insulators
R Nourafkan, G Kotliar - Physical Review B—Condensed Matter and Materials …, 2013 - APS
We derive a formula for the electric polarization of interacting insulators, expressed in terms
of the full Green's and vertex functions. We exemplify this method in the half-filled ionic …
of the full Green's and vertex functions. We exemplify this method in the half-filled ionic …