Effects of a boundary field in the Hubbard open chain

Hitoshi Asakawa

Physica A: Statistical Mechanics and its Applications, 1998, vol. 256, issue 1, 229-250

Abstract: Properties of the one-dimensional Hubbard model with a boundary field are studied. The present model realizes a strongly correlated electron system with almost localized impurity spins at the boundary. Physical quantities of the present model, e.g. the compressibility, the susceptibility and the specific heat, are evaluated using the Bethe-ansatz equation.

Keywords: Hubbard model; Boundary effects (search for similar items in EconPapers)
Date: 1998
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:256:y:1998:i:1:p:229-250

DOI: 10.1016/S0378-4371(98)00200-3

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