Spin-12 XYZ model revisit: General solutions via off-diagonal Bethe ansatz

The spin-12 XYZ model with both periodic and anti-periodic boundary conditions is studied via the off-diagonal Bethe ansatz method. The exact spectra of the Hamiltonians and the Bethe ansatz equations are derived by constructing the inhomogeneous T–Q relations, which allow us to treat both the even...

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Bibliographic Details
Published in:Nuclear physics. B 2014-09, Vol.886 (C), p.185-201
Main Authors: Cao, Junpeng, Cui, Shuai, Yang, Wen-Li, Shi, Kangjie, Wang, Yupeng
Format: Article
Language:English
Online Access:Get full text
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Summary:The spin-12 XYZ model with both periodic and anti-periodic boundary conditions is studied via the off-diagonal Bethe ansatz method. The exact spectra of the Hamiltonians and the Bethe ansatz equations are derived by constructing the inhomogeneous T–Q relations, which allow us to treat both the even N (the number of lattice sites) and odd N cases simultaneously in a unified approach.
ISSN:0550-3213
1873-1562
DOI:10.1016/j.nuclphysb.2014.06.026