Integrable open supersymmetric U model with boundary impurity
arXiv:cond-mat/9907315 · doi:10.1016/S0375-9601(00)00357-1
Abstract
An integrable version of the supersymmetric U model with open boundary conditions and an impurity situated at one end of the chain is introduced. The model is solved through the algebraic Bethe ansatz method and the Bethe ansatz equations are obtained.
RevTeX, 8 pages, no figures, final version to appear in Phys. Lett. A