Depolarized interaction-induced light scattering: a kinetic-theory approach

Abstract

Ideas underlying Enskog's kinetic theory combined with analysis of fluid dynamics in terms of binary collisions are used to derive a formula for the scattering function describing depolarized interaction-induced light scattering by moderately dense fluids at equilibrium. The new formula yields an exact expression for the integrated intensity. Numerical results obtained on the basis of the short-time version of the theory, valid for times of the order of one mean free time between collisions, agree well with molecular-dynamics simulations at moderate density.