Direct calculation of breather S matrices

Anastasia Doikou, Rafael I. Nepomechie

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


We formulate a systematic Bethe-Ansatz approach for computing bound-state (``breather'') S matrices for integrable quantum spin chains. We use this approach to calculate the breather boundary S matrix for the open XXZ spin chain with diagonal boundary fields. We also compute the soliton boundary S matrix in the critical regime.
Original languageEnglish
JournalJournal of Physics A: Mathematical and General
Issue number20
Publication statusPublished - 21 May 1999


  • hep-th
  • nlin.SI
  • solv-int


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