Integrability of the Heisenberg Chains with Boundary Impurities and Their Bethe Ansatz
arXiv:cond-mat/9910384 · doi:10.1088/0305-4470/32/44/302
Abstract
In this paper, we show the integrability of spin-1/2 XXZ Heisenberg chain with two arbitrary spin boundary Impurities. By using the fusion method, we generalize it to the spin-1 XXZ chain. Then the eigenvalues of Hamiltonians of these models are obtained by the means of Bethe ansatz method.
13 pages, latex, no figures, to be appeared in J.Phys.A