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IOP Publishing, Journal of Statistical Mechanics: Theory and Experiment, 08(2005), p. P08002-P08002, 2005

DOI: 10.1088/1742-5468/2005/08/p08002

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GeneralizedT–Qrelations and the open XXZ chain

Journal article published in 2005 by Rajan Murgan, Rafael I. Nepomechie ORCID
This paper is available in a repository.
This paper is available in a repository.

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Abstract

We propose a generalization of the Baxter T-Q relation which involves more than one independent Q(u). We argue that the eigenvalues of the transfer matrix of the open XXZ quantum spin chain are given by such generalized T-Q relations, for the case that at most two of the boundary parameters {α_-, α_+, β_-, β_+} are nonzero, and the bulk anisotropy parameter has values η = i π/2, iπ/4, . ; Comment: 14 pages, LaTeX; amssymb, no figures