Boundary impurities in the generalized supersymmetrict-Jmodel
Heng Fan, Miki Wadati, Rui-hong Yue
We study the generalized supersymmetric t - J model with impurities in the boundaries. We first construct the higher spin operator K -matrix for the XXZ Heisenberg chain. Setting the boundary parameter to be a special value, we find a higher spin reflecting K -matrix for the supersymmetric t - J model. By using the quantum inverse scattering method, we obtain the eigenvalue and the corresponding Bethe ansatz equations.
arXiv:cond-mat/9906409•Journal of Physics A Mathematical and General•Aug 25, 2000•10 citations