Superperturbation theory on the real axis

Link:
Autor/in:
Erscheinungsjahr:
2011
Medientyp:
Text
Schlagworte:
  • Models
  • Mean
  • Theory DMFT
  • Superconductors (Materials)
  • Superconducting Materials
  • Superconductivity
  • Superperturbation
  • dual perturbation theory
  • impurity solvers.
  • Models
  • Mean
  • Theory DMFT
  • Superconductors (Materials)
  • Superconducting Materials
  • Superconductivity
Beschreibung:
  • In this article we formulate the superperturbation theory for the Anderson impurity model on the real axis. The resulting impurity solver allows to evaluate dynamical quantities without numerical analytical continuation by the maximum entropy method or Padé approximants. This makes the solver well suited to study multiplet effects in solids within the dynamical mean field theory. First examples including multi-orbital problems are discussed. In this article the authors formulate the superperturbation theory for the Anderson impurity model on the real axis. The resulting impurity solver allows to evaluate dynamical quantities without numerical analytical continuation by the maximum entropy method or Padé approximants.
Lizenz:
  • info:eu-repo/semantics/closedAccess
Quellsystem:
Forschungsinformationssystem der UHH

Interne Metadaten
Quelldatensatz
oai:www.edit.fis.uni-hamburg.de:publications/fab7fbf5-65ff-4f91-8356-6c58cbc555f7