Linear kinetic theory of the square-well fluid

Abstract

A recently proposed kinetic theory for a dense fluid of square-well particles is linearised and shown to satisfy time-reversal symmetry. The hydrodynamic modes and their extensions to short wavelengths are calculated with the aid of equilibrium correlation functions which are taken from molecular dynamics simulations and are presented as well. Under most conditions, potential energy fluctuations decay slowly in comparison with velocity fluctuations.