Exact solution of the $S{U}_q(n)$ invariant quantum spin chains

Abstract

The Nested Bethe Ansatz is generalized to open boundary conditions. This is used to find the exact eigenvectors and eigenvalues of the $A_{n-1}$ vertex model with fixed open boundary conditions and the corresponding $S{U}_q(n)$ invariant hamiltonian. The Bethe Ansatz equations obtained are solved in the thermodynamic limit giving the vertex model free energy and the hamiltonian ground state energy including the corresponding boundary contributions.

29 pages

References in corpus (1)

• Addendum to ``Integrability of Open Spin Chains with Quantum Algebra Symmetry''

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