The kinetic equation for Bogoliubov quasiparticles for both the A and B phases of superfluid 3He is derived from the general matrix kinetic equation. A condensed expression for the exact spin-symmetric collision integral is given. The quasiparticle relaxation rate is calculated for the BW state using the s-p approximation for the quasiparticle scattering amplitude. By using the results for the quasiparticle relaxation rate, the mean free path of Bogoliubov quasiparticles is calculated for all temperatures.
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Also at Max-Planck-Institut für Physik und Astrophysik, München, Germany.
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Einzel, D., Wölfle, P. Transport and relaxation properties of superfluid 3He. I. Kinetic equation and Bogoliubov quasiparticle relaxation rate. J Low Temp Phys 32, 19–37 (1978). https://doi.org/10.1007/BF00116904
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DOI: https://doi.org/10.1007/BF00116904