Simplified calculation of boundary S matrices

Anastasia Doikou, Luca Mezincescu, Rafael I. Nepomechie

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


The antiferromagnetic Heisenberg spin chain with N spins has a sector with N = odd, in which the number of excitations is odd. In particular, there is a state with a single one-particle excitation. We exploit this fact to give a simplified derivation of the boundary S matrix for the open antiferromagnetic spin-1/2 Heisenberg spin chain with diagonal boundary magnetic fields.

Original languageEnglish (US)
Pages (from-to)L507-L512
JournalJournal of Physics A: Mathematical and General
Issue number15
StatePublished - Aug 7 1997
Externally publishedYes

ASJC Scopus subject areas

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


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