Dynamics of metastable fluid states in the liquid-solid transition

Abstract

A fluctuation theory for the dynamics of metastable fluid states is presented which relies on a limiting form for the static structure factor $S(k)$ previously presented by the authors. The transport coefficients are found to show a divergence in the hydrodynamic regime. In the nonhydrodynamic regime a model is presented which uses an approximate single-particle memory function and a diffusive mode is found; this is compared with fluctuation theory results of other workers. A recent computer experiment has shown numerical agreement with the static model.