✦ LIBER ✦

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

✍ Scribed by F.D.M. Haldane

Publisher: Elsevier Science
Year: 1983
Tongue: English
Weight: 402 KB
Volume: 93
Category: Article
ISSN: 0375-9601
DOI: 10.1016/0375-9601(83)90631-x

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✦ Synopsis

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.

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