Transport Properties of Superfluid 3He

Abstract

The coefficients of first viscosity, thermal conductivity and spin diffusion for the superfluid 3He are calculated from the kinetic equation by solving the integral equation arising from the collision integral. The temperature dependences of these coefficients are computed near the transition temperature and the absolute zero temperature, allowing the energy gap to be anisotropic and isotropic as well as non-unitary for the spin diffusion problem and are compared with experiments for the viscosity and the thermal conductivity, showing a reasonably good agreement.