Transport Properties of a Non-relativistic Delta-Shell Gas with Long Scattering Lengths

Abstract

The coefficients of diffusion, thermal conductivity, and shear viscosity are calculated for a system of non-relativistic particles interacting via a delta-shell potential V(r)=-v \delta(r-R) when the average distance between particles is smaller than R. The roles of resonances and long scattering lengths including the unitary limit are examined. Results for ratios of diffusion to viscosity and viscosity to entropy density are presented for varying scattering lengths.

Comments: 4 pages, 5 figures, 1 table, To appear in Festschrift for Gerry Brown, ed. Sabine Lee (World Scientific, Singapore)