On the linearity of the self-diffusion process

摘要: Formal arguments are given that the self-diffusion process, understood as mutual diffusion process in a system which consists of two mechanically similar species particles, and is at total equilibrium if labels ignored, an inherently linear, but nonlocal, transport process. There no nonlinear Burnett effects, nonlocal coefficient independent composition mixture. The present state knowledge, from theory computer experiments, concerning various quantities appear formal analysis summarized for both fluid Lorentz systems.