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Boundary energy of the general open XXZ chain at roots of unity

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Published 5 January 2007 Published under licence by IOP Publishing Ltd
, , Citation Rajan Murgan et al JHEP01(2007)038 DOI 10.1088/1126-6708/2007/01/038

1126-6708/2007/01/038

Abstract

We have recently proposed a Bethe Ansatz solution of the open spin-1/2 XXZ quantum spin chain with general integrable boundary terms (containing six free boundary parameters) at roots of unity. We use this solution, together with an appropriate string hypothesis, to compute the boundary energy of the chain in the thermodynamic limit.

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10.1088/1126-6708/2007/01/038