Soliton S matrices for the critical A(1)N-1 chain

Anastasia Doikou, Rafael I. Nepomechie

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


We compute by Bethe Ansatz both bulk and boundary hole scattering matrices for the critical A_{N-1}^(1) quantum spin chain. The bulk S matrix coincides with the soliton S matrix for the A_{N-1}^(1) Toda field theory with imaginary coupling. We verify our result for the boundary S matrix using a generalization of the Ghoshal-Zamolodchikov boundary crossing relation.
Original languageEnglish
Pages (from-to)121–131
Number of pages11
JournalPhysics Letters B
Issue number1-2
Publication statusPublished - 9 Sep 1999


  • hep-th
  • nlin.SI
  • solv-int


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