title: Local self-energy approach for electronic structure calculations.
abstract: Using a novel self-consistent implementation of Hedin's perturbation theory, we calculate space- and energy-dependent self-energy for a number of materials. We find it to be local in real space and rapidly convergent on second- to third-nearest neighbors. Corrections beyond are evaluated and shown to be completely localized within a single unit cell. This can be viewed as a fully self-consistent implementation of the dynamical mean field theory for electronic structure calculations of real solids using a perturbative impurity solver.
authors.affiliation: RRC "Kurchatov Institute", Moscow 123182, Russia.
authors.forename: N E
authors.initials: NE
authors.lastname: Zein
authors.forename: S Y
authors.initials: SY
authors.lastname: Savrasov
authors.forename: G
authors.initials: G
authors.lastname: Kotliar