Abstract
We consider the open spin-s XXZ quantum spinchain with N sites and general integrable boundary terms for generic values of the bulkanisotropy parameter, and for values of the boundary parameters whichsatisfy a certain constraint. We derive two sets of Bethe ansatz equations,and find numerical evidence that together they give the complete set of(2s+1)N eigenvalues of the transfer matrix. For the case ofs = 1, we explicitly determine the Hamiltonian, and find an expression for its eigenvalues interms of Bethe roots.
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