International Journal of Modern Physics B

The Bethe Ansatz Solution of a One-Dimensional Fermion Model with Boundary Impurity

Shu Chen, Yupeng Wang, Fan Yang, Fu‐Cho Pu

Published Sep 20, 1998• 1 citation

Abstract

We investigate a 1D fermion model with boundary impurity. When the boundary impurity coupling coefficients fullfil some special relations, this model is integrable. The integrable condition can be determined by the self-consistent condition. Furthermore, the eigenvalue and the Bethe ansatz equation are also obtained by using the coordinate Bethe ansatz method, thus the ground state properties is discussed in some special case.

DOI: 10.1142/s0217979298001423

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