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A simple one-component version of Fermi-liquid theory is applied to measurements of the specific heat of UPt 3 and shown to suggest that UPt 3 is an odd-parity superconductor of purely electronic origin. The calculated transition temperature as a function of pressure is found to be in quantitative agreement with experiment. 74.10.+v, 65.40.Em, 65.70. +y, 75.25.+z Stewart, Fisk, Willis, and Smith 1 have shown that the specific heat of UPt 3 at zero pressure can be fitted by an expression of the form

The Landau theory of Fermi liquids is extended to include spin-orbit coupling. After constructing the general form of the quasiparticle interaction (which allows spin-orbit coupling), forwardscattering sum rules, static properties such as the sound velocity and magnetic susceptibility, and the stability conditions are derived. Some possible applications of this theory are considered.

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