Shear viscosity of p-wave superfluid Fermi gas with weak interaction at low temperatures

TL;DR

This paper calculates the shear viscosity tensor of a p-wave superfluid Fermi gas with weak interactions at low temperatures, revealing how different components scale with temperature.

Contribution

It provides a detailed analysis of shear viscosity components in p-wave superfluid Fermi gases, highlighting the dominance of binary processes at low temperatures.

Findings

Shear viscosity components scale as (1/T)^2, (1/T)^4, and (1/T)^6.

Binary processes dominate shear viscosity at low temperatures.

Different shear viscosity tensor components have distinct temperature dependencies.

Abstract

The shear viscosity tensor of the superfluid Fermi gas in p-wave state with weak interaction is calculated at low temperatures, by using the Boltzmann equation approach. We consider the transition probabilities for the binary, decay and coalescence processes. We show that only the binary processes are dominated at low temperatures and the components of shear viscosity {\eta}_xy, {\eta}_xx, {\eta}_yy are proportional to (1/T)^2, and {\eta}_xz, {\eta}_yz and {\eta}_zz are proportional to (1/T)^4 and (1/T)^6, respectively.