Analytical Results for the Grand-Canonical Partition Function for Unidimensional Hubbard Model up to Order $β^5$

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dc.creatorCharret, I. C.
dc.creatorSilva, E. V. Correa
dc.creatorde Souza, S. M.
dc.creatorThomaz, M. T.
dc.date1997-05-23
dc.date.accessioned2026-07-07T09:11:47Z
dc.date.available2026-07-07T09:11:47Z
dc.descriptionWe calculate the exact analytical coefficients of the $β$ expansion of the grand-canonical partition function of the unidimensional Hubbard model up to order $β^5$, using an alternative method, based on properties of the Grassmann algebra. The results derived are non-perturbative and no restrictions on the set of parameters that characterize the model are required. By applying this method we obtain analytical results for the thermodynamical quantities, in the high-temeprature limit, for arbitrary density of electrons in the unidimensional chain.
dc.descriptionPlin TeX, 30 pages, 7 Encapsulated PostScript figures (uses epsf and rotate)
dc.identifierhttps://arxiv.org/abs/cond-mat/9705241
dc.identifierhttp://arxiv.org/abs/cond-mat/9705241
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/151801
dc.subjectStrongly Correlated Electrons
dc.subjectStatistical Mechanics
dc.titleAnalytical Results for the Grand-Canonical Partition Function for Unidimensional Hubbard Model up to Order $β^5$
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