Abstract
The scalar kinetic equation for Bogoliubov quasiparticles in the B phase of superfluid3He is discussed and the collision integral is represented in a compact form. For the cases of shear and second viscosity and diffusive thermal conductivity the problem is reduced to solving one-dimensional integral equations. The quasiparticle interaction enters via weighted angular averages of the normal state scattering amplitude. The effect of strong coupling renormalization of the gap function is accounted for. The transport coefficients are exactly related to relaxation parameters that describe how the system tends toward local equilibrium. For low temperatures the transport parameters are evaluated exactly, including corrections of orderT/T c. The results are compared with those of a previous paper in which an approximate form of the collision operator was used, as well as with results of a variational approach and with recent experimental data.
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Einzel, D. Spin-independent transport parameters for superfluid3He-B. J Low Temp Phys 54, 427–474 (1984). https://doi.org/10.1007/BF00683612
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DOI: https://doi.org/10.1007/BF00683612