New integrable version of the degenerate supersymmetric t-J model

Details New integrable version of the degenerate supersymmetric t-J model New integrable version of the degenerate supersymmetric t-J model

1999-04-02

arxiv.org/abs/cond-mat/9904041v1

Phys. Lett. A vol. 261, pg. 365-370 (1999)

Physics

Condensed Matter

Statistical Mechanics

12 pages, 3 figures

Scientific paper

10.1016/S0375-9601(99)00640-4

A new integrable version of the degenerate supersymmetric t-J model is proposed. In this formulation instead of restricting single occupancy of electrons at each lattice site we may have up to two electrons at each site. As a requirement of exact integrability the hopping interaction turns out to be correlated with the density of electrons in the neighboring sites. The exact solution of the model is obtained through the coordinate Bethe anzatz.

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