Brownian motion: a case of temperature fluctuations
J. Luczka, B. Zaborek
Abstract
A diffusion process of a Brownian particle in a medium of temperature T is re-considered. We assume that temperature of the medium fluctuates around its mean value. The velocity probability distribution is obtained. It is shown that the stationary state is not a thermodynamic equilibrium state described by the Maxwell distribution. Instead a nonequilibrium state is produced by temperature fluctuations.
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