Unidimensional generalized Hubbard model in the high temperature limit

I.C. Charret, E.V.Corrêa Silva, O.Rojas Santos, S.M. de Souza and M.T. Thomaz

Physica A: Statistical Mechanics and its Applications, 1999, vol. 270, issue 3, 462-485

Abstract: We explore the properties of the non-commutative Grassmann algebra to study the unidimensional Generalized Hubbard model, obtaining the analytical expressions for the first three terms in the high temperature expansion of its grand canonical partition function, with no restrictions to the constant parameters of the model. We obtain corrections to known results, in the case of half-filled band with hopping constants t=0 and X=0.

Keywords: Grand canonical partition function; Fermionic system; High temperature expansion (search for similar items in EconPapers)
Date: 1999
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:270:y:1999:i:3:p:462-485

DOI: 10.1016/S0378-4371(99)00157-0

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