Mobility and diffusion of a tagged particle in a driven colloidal suspension
Mobility and diffusion of a tagged particle in a driven colloidal suspension
We study numerically the influence of density and strain rate on the diffusion and mobility of a single tagged particle in a sheared colloidal suspension. We determine independently the time-dependent velocity autocorrelation functions and, through a novel method, the response functions with respect to a small force. While both the …