Quantum Lattice Gas Model of 3He–4He Mixtures
The quantum lattice gas model of Matsubara and Matsuda1 has been applied with much success to the liquid-gas and superfluid transitions2 of liquid 4He, to the solid phase3 of 4He, and to the question of the existence of a superfluid solid phase4 of 4He. We consider here the extension of this model in order to apply it to 3He-4He mixtures. After defining the model we shall obtain its phase diagram within mean-field theory.
KeywordsPhase Diagram Commutation Relation Follow Commutation Relation Consolute Point Fermion Tunneling
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- 4.J.-S. Jun, Ph.D. Thesis, Case Western Reserve University, unpublished, 1969; H. Matsuda and T. Tsuneto, Prog. Theor. Phys. (Kyoto) Suppl. 46, 411 (1970); K.-S. Liu and M.E. Fisher, Report # 1813, Material Sci. Center, Cornell Univ., 1972.Google Scholar