Generalized coordinate Bethe ansatz for non-diagonal boundaries

We compute the spectrum and the eigenstates of the open XXX model with non-diagonal (triangular) boundary matrices. Since the boundary matrices are not diagonal, the usual coordinate Bethe ansatz does not work anymore, and we use a generalization of it to solve the problem.

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Bibliographic Details
Published in:Nuclear physics. B 2012-05, Vol.858 (3), p.502-512
Main Authors: Crampe, N., Ragoucy, E.
Format: Article
Language:English
Subjects:
Condensed Matter
High Energy Physics - Theory
Other
Physics
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Description
Summary:We compute the spectrum and the eigenstates of the open XXX model with non-diagonal (triangular) boundary matrices. Since the boundary matrices are not diagonal, the usual coordinate Bethe ansatz does not work anymore, and we use a generalization of it to solve the problem.
ISSN:0550-3213
1873-1562
DOI:10.1016/j.nuclphysb.2012.01.020