Duffield N.G., Pule J.V. — Thermodynamics and Phase Transitions in the Overhauser Model
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Название: Thermodynamics and Phase Transitions in the Overhauser Model
Авторы: Duffield N.G., Pule J.V.
Аннотация:
Journal of Statistical Physics, Vol. 54, Nos. 1/2, 1989. p. 449-475.
We analyze the thermodynamics of the Overhauser model and demonstrate rigorously the existence of a phase transition. This is achieved by extending techniques previously developed to treat the BCS model in the quasi-spin formulation. Additionally, we compare the thermodynamics of the quasi-spin and full-trace BCS models. The results are identical up to a temperature rescaling.
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