Non-diagonal reflection for the non-critical XXZ model

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1 Citation (Scopus)

Abstract

The most general physical boundary $S$-matrix for the open XXZ spin chain in the non-critical regime ($\cosh (\eta)>1$) is derived starting from the bare Bethe ansazt equations. The boundary $S$-matrix as expected is expressed in terms of $\Gamma_q$-functions. In the isotropic limit corresponding results for the open XXX chain are also reproduced.
Original language English 194007 Journal of Physics A: Mathematical and Theoretical 41 19 https://doi.org/10.1088/1751-8113/41/19/194007 Published - 16 May 2008

Keywords

• hep-th
• cond-mat.stat-mech
• math-ph
• math.MP
• nlin.SI

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