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The ground state of the nonlinear sigma model (O(4)3+1)

โœ Scribed by N.E. Ligterink; N.R. Walet; R.F. Bishop


Book ID
114290738
Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
232 KB
Volume
63
Category
Article
ISSN
0920-5632

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Continuum dynamics of the 1-D Heisenberg
โœ F.D.M. Haldane ๐Ÿ“‚ Article ๐Ÿ“… 1983 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 402 KB

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 Nรฉel magnon is pred