Bethe ansatz solution of the open XX spin chain with non-diagonal boundary terms

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We consider the integrable open XX quantum spin chain with non-diagonal boundary terms. We derive an exact inversion identity, by which we obtain the eigenvalues of the transfer matrix and the Bethe ansatz equations. For generic values of the boundary parameters, the Bethe ansatz solution is formulated in terms of the Jacobian elliptic functions.

Original languageEnglish (US)
Pages (from-to)9993-10003
Number of pages11
JournalJournal of Physics A: Mathematical and General
Issue number47
StatePublished - Nov 30 2001


ASJC Scopus subject areas

  • Mathematical Physics
  • Physics and Astronomy(all)
  • Statistical and Nonlinear Physics

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