Место издания:Sheraton Rhodes Resort Родос, Греция
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Аннотация:In our paper, we consider diffusion in Lorenz gas with random distribution in space of periodically moving scatterers. These periodic oscillations of scatterers can be interpreted as the mechanical work. This work expends on the increase of the internal energy. As is shown, the consequence of periodic oscillations of the scatterers is that the diffusion coefficient is in three times higher than for stochastic scatterers motion of the same intensity. It should be emphasized that this type of superdiffusion can be described by a standard approach, analogously to the normal diffusion in the ideal gas. In this case the diffusion coefficient will increase linearly with time as a result of heating provided by the mechanical work. The method proposed does not require complicated argumentation, and the final results are in a good agreement with the results of direct numerical simulations. This approach can still be useful for investigation of particles motion in complex landscapes, like the anomalously fast motion of metal clusters on graphite surfaces.