Abstract
The second viscosity coefficients of A 1-phase of superfluid 3He are calculated at low temperatures and melting pressure by using the standard Boltzmann equation approach. The Pfitzner procedure has been used for the quasiparticle scattering amplitude which appears in collision integrals of Boltzmann equation. Temperature dependence of components of second viscosity coefficients, ( ζ 1 ) xx ( = ( ζ 1 ) yy ) , ( ζ 1 ) zz and ( ζ 2 ) xx ( = ( ζ 2 ) yy = ( ζ 2 ) zz ) are proportional to ( ( s 2 ) ↑ ) 2 T 6 , ( ( s 2 ) ↑ ) 2 T 4 and ( ( s 2 ) ↓ ) 2 T 2 , respectively, where the spin-dependent ( s 2 ) ↓ is found to be constant with respect to temperature, while ( s 2 ) ↑ has a 1/ T 2 dependence. Therefore, ( ζ 1 ) xx and ( ζ 2 ) xx are proportional to T 2, and ( ζ 1 ) zz and the other viscosity coefficient ζ 3 are constant.
Published Version
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