Diagrammatic Determinantal methods: projective schemes and applications to the Hubbard-Holstein model

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dc.creatorAssaad, F. F.
dc.creatorLang, T. C.
dc.date2007-02-20
dc.date2007-07-24
dc.date.accessioned2026-07-07T08:19:45Z
dc.date.available2026-07-07T08:19:45Z
dc.descriptionWe extend the weak-coupling diagrammatic determinantal algorithm to projective schemes as well as to the inclusion of phonon degrees of freedom. The projective approach provides a very efficient algorithm to access zero temperature properties. To implement phonons, we integrate them out in favor of a retarded density-density interaction and simulate the resulting purely electronic action with the weak-coupling diagrammatic determinantal algorithm. Both extensions are tested within the dynamical mean field approximation for the Hubbard and Hubbard-Holstein models.
dc.description8 pages, 4 figures, final version as appeared in PRB
dc.identifierhttps://arxiv.org/abs/cond-mat/0702455
dc.identifierhttp://arxiv.org/abs/cond-mat/0702455
dc.identifierPhys. Rev. B 76, 035116 (2007)
dc.identifierdoi:10.1103/PhysRevB.76.035116
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/134875
dc.subjectStrongly Correlated Electrons
dc.titleDiagrammatic Determinantal methods: projective schemes and applications to the Hubbard-Holstein model
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