Time correlation function of the shear stress in sheared particle systems

Abstract

The long-time behaviors of the time correlation function C η(t) of the shear stress for three-dimensional sheared fluids are theoretically investigated. It is found that there are the crossovers in C η(t) from t-3/2 to t-2 for sheared fluids of elastic particles without any thermostat, and from t-3/2 to t -5/2 for isothermal sheared fluids including granular fluids.