Reduction of XXZ model with generalized periodic boundary conditions

2002/02/05 by A. A. Belavin, S. Yu. Gubanov
Physics and Astronomy · #hep-ph #hep-th

paper · pdf

published as Theor.Math.Phys. 129 (2001) 1484-1493 · 8 pages, 1 figures

arxiv created 2002/02/05 · arxiv updated 2009/11/30

Abstract

We examine the XXZ model with generalized periodic boundary conditions and identify conditions for the truncation of the functional fusion relations of the transfer matrix fusion. After the truncation, the fusion relations become a closed system of functional equations. The energy spectrum can be obtained by solving these equations. We obtain the explicit form of the Hamiltonian eigenvalues for the special case where the anisotropy parameter q⁴=-1.

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