Abstract
A kinetic theory of anisotropic Fermi superfluids is presented. The kinetic equation for the quasiparticle matrix distribution function is derived from the microscopic theory, supplemented by definitions of the relevant densities and currents. The static spin susceptibility, the normal fluid density, and the specific heat are calculated from the static limit of the kinetic equation. Special attention is given to the collision integral, which is presented explicitly in terms of normal Fermi liquid quantities. The energy dependence of the collision integral makes necessary the introduction of two other distribution function matrices, for which kinetic equations are also derived.
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Wölfle, P. Kinetic theory of anisotropic Fermi superfluids. J Low Temp Phys 22, 157–183 (1976). https://doi.org/10.1007/BF00655220
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DOI: https://doi.org/10.1007/BF00655220