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Journal of Mathematical Physics

Hidden local gauge invariance in the one-dimensional Heisenberg XXZ model with the general boundary terms

Huan-Qiang Zhou, Xi‐Wen Guan

Published Jan 1, 1996• 1 citation
Publisher

Abstract

Hidden local gauge invariance in the one-dimensional Heisenberg XXZ model with the general boundary terms is studied in the framework of the quantum inverse scattering method. The Bethe ansatz equations are established for the model with the special boundary terms. Our results show that the Hamiltonian and its eigenvectors are explicitly gauge dependent whereas the energy eigenvalues and the Bethe ansatz equations are gauge invariant.

DOI
10.1063/1.531386

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