Simplified calculation of boundary S matrices

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

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)
JournalJournal of Physics A: Mathematical and General
Volume30
Issue number15
DOIs
StatePublished - Aug 7 1997

Fingerprint

Spin Chains
Excitation
Odd
Magnetic fields
matrices
Sector
Magnetic Field
excitation
sectors
derivation
magnetic fields

ASJC Scopus subject areas

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

Cite this

Simplified calculation of boundary S matrices. / Doikou, Anastasia; Mezincescu, Alexandru; Nepomechie, Rafael.

In: Journal of Physics A: Mathematical and General, Vol. 30, No. 15, 07.08.1997.

Research output: Contribution to journalArticle

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