Tight-binding treatment of the Hubband model in infinite dimensions
dc.contributor.author | Craco, Luis | pt_BR |
dc.contributor.author | Gusmao, Miguel Angelo Cavalheiro | pt_BR |
dc.date.accessioned | 2014-10-07T02:11:19Z | pt_BR |
dc.date.issued | 1996 | pt_BR |
dc.identifier.issn | 0163-1829 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/104210 | pt_BR |
dc.description.abstract | We discuss the infinite dimension limit of the Hubbard model by means of a perturbative expansion of the one-particle Green’s function around the atomic limit. The diagrammatic structure is simplified in this limit, allowing a formal resummation that reproduces a previously proposed mapping to a single-site mean-field problem. The method provides a natural way of addressing this effective problem by means of a perturbative expansion in the local mean field. This gives the correct exact result for the Falicov-Kimball model, which is used as a starting point to study the Hubbard case. | en |
dc.format.mimetype | application/pdf | |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | Physical review. B, Condensed matter. New York. Vol. 54, n. 3 (July 1996), p. 1629-1636 | pt_BR |
dc.rights | Open Access | en |
dc.subject | Física da matéria condensada | pt_BR |
dc.subject | Modelo de hubbard | pt_BR |
dc.subject | Teoria de perturbacao | pt_BR |
dc.subject | Sistemas de férmions | pt_BR |
dc.title | Tight-binding treatment of the Hubband model in infinite dimensions | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 000148846 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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