A truth about Brownian motion in gases and in general
Abstract
Description
Real thermal motion of gas molecules, free electrons, etc., at long time intervals (much greater than mean free-flight time) possesses, contrary to its popular mathematical models, essentially non-Gaussian statistics. A simple proof of this statement is suggested basing on only the determinism and reversibility of microscopic dynamics and besides incidentally derived virial expansion of a path probability distribution of molecular Brownian particle.
5 pages, no figures, RevTeX4, with supplement (in the source tex-file) of Russian text of the paper submitted to JETP Letters
5 pages, no figures, RevTeX4, with supplement (in the source tex-file) of Russian text of the paper submitted to JETP Letters