Bethe Ansatz solution of the open XX spin chain with nondiagonal boundary terms

Abstract

We consider the integrable open XX quantum spin chain with nondiagonal boundary terms. We derive an exact inversion identity, using which we obtain the eigenvalues of the transfer matrix and the Bethe Ansatz equations. For generic values of the boundary parameters, the Bethe Ansatz solution is formulated in terms of Jacobian elliptic functions.

14 pages, LaTeX; amssymb, no figures

References in corpus (1)

• Boundary S matrices with N=2 supersymmetry

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