Abstract
The relevant coefficient of second viscosity ξ 3 is calculated exactly near the transition in terms of the quasiparticle scattering amplitude in the normal state. ξ 3 is shown to dominate the attenuation of fourth and second sound. Second sound should be well defined only at frequencies below about 1 Hz.
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Wölfle, P. Second viscosity and the attenuation of fourth and second sound in superfluid3He near the transition temperature. J Low Temp Phys 26, 659–666 (1977). https://doi.org/10.1007/BF00655437
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DOI: https://doi.org/10.1007/BF00655437