Semiclassical statistical mechanics

We examine the statistical mechanics of the classically integrable Ishimori-Faddeev-Haldane lattice spin model. Thermodynamic properties can be exactly described in terms of an interacting soliton gas. Our semiclassical scheme can be used to calculate the low-temperature thermodynamics of the S=1/2 Heisenberg chain, in very good agreement with recent numerical calculations based on the quantum-mechanical Bethe ansatz.

Physical Review LettersNov 18, 19919 citations

Semiclassical statistical mechanics

Richard M. Stratt

Published Apr 1, 1979• 0 citations

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