Duality and quantum-algebra symmetry of the AN-1(1) open spin chain with diagonal boundary fields

Anastasia Doikou, Rafael I. Nepomechie

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

We show that the transfer matrix of the A_{N-1}^(1) open spin chain with diagonal boundary fields has the symmetry U_q (SU(L)) x U_q (SU(N-L)) x U(1), as well as a ``duality'' symmetry which interchanges L and N - L. We exploit these symmetries to compute exact boundary S matrices in the regime with q real.
Original languageEnglish
Pages (from-to)641–664
Number of pages24
JournalNuclear Physics B
Volume530
Issue number3
DOIs
Publication statusPublished - 19 Oct 1998

Keywords

  • hep-th
  • nlin.SI
  • solv-int

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