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arXiv:0712.2918 · Journal of Physics A Mathematical and Theoretical

Non-diagonal reflection for the non-criticalXXZmodel

Anastasia Doikou

Published Apr 29, 2008• 1 citation
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Abstract

The most general physical boundary $S$-matrix for the open XXZ spin chain in the non-critical regime ($\cosh (η)>1$) is derived starting from the bare Bethe ansazt equations. The boundary $S$-matrix as expected is expressed in terms of $Γ_q$-functions. In the isotropic limit corresponding results for the open XXX chain are also reproduced.

DOI
10.1088/1751-8113/41/19/194007

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