Nonlinear Effects in Supercritical Quenches of a Binary Fluid

Authors

Rolfe G. Petschek, Case Western Reserve UniversityFollow

Document Type

Article

Publication Date

4-9-1984

Abstract

We report on a study of the evolution of the structure factor S(k,t) of a binary fluid mixture near the consolute critical point after rapid quenches which kept the system in the stable, one-phase region. S(k,t) always relaxed more slowly than expected on the basis of linear response and, under certain conditions, overshot the equilibrium value. A nonlinear theory without adjustable parameters, based on the Langevin equations for order-parameter fluctuations near the critical point, agreed with the data.

Publication Title

Physical Review Letters

Rights

© 1984 The American Physical Society.

Recommended Citation

Nonlinear Effects in Supercritical Quenches of a Binary Fluid. Jefferson C.M., Petschek R.G., Cannell D.S., Physical Review Letters 52:15, 1329-1332, 1984.