Interpolation between Hubbard and supersymmetric t-J models. Two-parameter integrable models of correlated electrons
F. C. Alcaraz, R. Z. Bariev
Abstract
Two new one-dimensional fermionic models depending on two independent parameters are formulated and solved exactly by the Bethe-ansatz method. These models connect continuously the integrable Hubbard and supersymmetric t-J models.
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