Continuum dynamics of the 1-D Heisenberg antiferromagnet: Identification with the O(3) nonlinear sigma model

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Abstract

An action-angle representation of spin variables is used to relate the large-S Heisenberg antiferromagnet to the O(3) nonlinear sigma model quantum field theory, with precise equivalence for integral S. A variant theory is found for half-integral S. Dynamic mass generation by the Néel magnon is predicted.

Original languageEnglish (US)
Pages (from-to)464-468
Number of pages5
JournalPhysics Letters A
Volume93
Issue number9
DOIs
StatePublished - Feb 14 1983
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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