Low-Temperature Ion Mobility in Fermi Liquids

Abstract

The mobility of a large hard-sphere impurity in a Fermi liquid has been calculated by solving the transport equation for the quasiparticles exactly to order $T^2$. Using the Landau parameters known for ${\mathrm{He}}^3$, the correction to the zero-temperature mobility, which was previously found to be proportional to $T^2$, turns out to be somewhat too small. The temperature dependence is in agreement with experiment.