Integrability of the Heisenberg chains with boundary impurities and their Bethe ansatz
Bo-Yu Hou, Kangjie Shi, Rui‐Hong Yue +1 more
We show the integrability of spin-½ 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.
arXiv:cond-mat/9910384•Journal of Physics A Mathematical and General•Oct 21, 1999•2 citations