Generalized T-Q relations and the open XXZ chain

Details Generalized T-Q relations and the open XXZ chain Generalized T-Q relations and the open XXZ chain

2005-07-14

arxiv.org/abs/hep-th/0507139v1

J.Stat.Mech.0508:P08002,2005

Physics

High Energy Physics

High Energy Physics - Theory

14 pages, LaTeX; amssymb, no figures

Scientific paper

10.1088/1742-5468/2005/08/P08002

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 {\alpha_-, \alpha_+, \beta_-, \beta_+} are nonzero, and the bulk anisotropy parameter has values \eta = i \pi/2, i\pi/4, ...

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