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arXiv · 0712.2918

Non-diagonal reflection for the non-critical XXZ model

Anastasia Doikou
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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.

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Anastasia Doikou. 2007-12-18. Non-diagonal reflection for the non-critical XXZ model. https://doi.org/10.1088/1751-8113%2F41%2F19%2F194007

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