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Self-consistent GW combined with single-site dynamical mean field theory for a Hubbard model

Karlsson, K

Journal of physics. Condensed matter, 2005-12, Vol.17 (48), p.7573-7598 [Periódico revisado por pares]

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Título:
Self-consistent GW combined with single-site dynamical mean field theory for a Hubbard model
Autor: Karlsson, K
Assuntos: Condensed matter: electronic structure, electrical, magnetic, and optical properties ; Electron states ; Exact sciences and technology ; Natural sciences ; Naturvetenskap ; Physics ; Theories and models of many electron systems
É parte de: Journal of physics. Condensed matter, 2005-12, Vol.17 (48), p.7573-7598
Notas: ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
Descrição: We combine the single-site dynamical mean field theory (DMFT) with the non-local GW method. This is done fully self-consistently and we apply our formalism to a one-band Hubbard model. Eventually at self-consistency the full self-energy and polarization operator of the system are retrieved. Some numerical results, in the metallic as well as the insulator regime, are presented and briefly discussed. Depending on the involved interaction (GW) parameters, substantial changes are found when the GW self-energy is incorporated. However, the main point of this work is to demonstrate the applicability of the method, not to make any strict comparison with exact results and experiments.
Editor: Bristol: IOP Publishing
Idioma: Inglês;Sueco

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