Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10720717 | Nuclear Physics B | 2010 | 21 Pages |
Abstract
We study the exact solution of an N-state vertex model based on the representation of the Uq[SU(2)] algebra at roots of unity with diagonal open boundaries. We find that the respective reflection equation provides us one general class of diagonal K-matrices having one free-parameter. We determine the eigenvalues of the double-row transfer matrix and the respective Bethe ansatz equation within the algebraic Bethe ansatz framework. The structure of the Bethe ansatz equation combine a pseudomomenta function depending on a free-parameter with scattering phase-shifts that are fixed by the roots of unity and boundary variables.
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Physical Sciences and Engineering
Mathematics
Mathematical Physics
Authors
M.J. Martins, C.S. Melo,