Generic boundary scattering in the open XXZ chain

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The open critical XXZ spin chain with a general right boundary and a trivial diagonal left boundary is considered. Within this framework we propose a simple computation of the exact generic boundary S-matrix (with diagonal and non-diagonal entries), starting from the `bare' Bethe ansatz equations. Our results coincide with the ones obtained by Ghoshal and Zamolodchikov, after assuming suitable identifications of the bulk and boundary parameters.
Original languageEnglish
Pages (from-to)4144–4150
Number of pages7
JournalPhysics Letters A
Issue number23
Publication statusPublished - 2 Jun 2008


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


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