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A complete Bethe ansatz solution for the open spin-<i>s XXZ</i>chain with general integrable boundary terms

A complete Bethe ansatz solution for the open spin-<i>s XXZ</i>chain with general integrable boundary terms

We consider the open spin-s XXZ quantum spin chain with N sites and general integrable boundary terms for generic values of the bulk anisotropy parameter, and for values of the boundary parameters which satisfy a certain constraint. We derive two sets of Bethe ansatz equations, and find numerical evidence that …