Long-distance asymptotics of spin-spin correlation functions for the XXZ spin chain

Sergei Lukyanov, Véronique Terras

Research output: Contribution to journalArticlepeer-review

101 Scopus citations

Abstract

We study asymptotic expansions of spin-spin correlation functions for the XXZ Heisenberg chain in the critical regime. We use the fact that the long-distance effects can be described by the Gaussian conformal field theory. Comparing exact results for form factors in the XYZ and sine-Gordon models, we determine correlation amplitudes for the leading and main subleading terms in the asymptotic expansions of spin-spin correlation functions. We also study the isotropic (XXX) limit of these expansions.

Original languageEnglish (US)
Pages (from-to)323-356
Number of pages34
JournalNuclear Physics B
Volume654
Issue number3
DOIs
StatePublished - Mar 31 2003

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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