A model for diffusion and phase separation which takes into account exponential relaxation of the solute diffusion flux and its fluctuations is developed. The model describes a system undergoing phase separation governed by a partial differential equation of hyperbolic type. The analysis is done...

By means of extensive numerical simulations we have studied the time evolution and the scaling properties of the structure factor S(q,t) of diffusion-limited (DLCA) and reaction-limited (RLCA) colloid aggregation in three dimensions. We found that in DLCA S(q, t) scales in a similar way as in...