Algebraic properties of an integrable t-J model with impurities

Details Algebraic properties of an integrable t-J model with impurities Algebraic properties of an integrable t-J model with impurities

1999-01-11

arxiv.org/abs/cond-mat/9901091v1

Physics

Condensed Matter

20 pages, LaTex

Scientific paper

10.1016/S0550-3213(99)00190-X

We investigate the algebraic structure of a recently proposed integrable $t-J$ model with impurities. Three forms of the Bethe ansatz equations are presented corresponding to the three choices for the grading. We prove that the Bethe ansatz states are highest weight vectors of the underlying $gl(2|1)$ supersymmetry algebra. By acting with the $gl(2|1)$ generators we construct a complete set of states for the model.

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