Dephasing by time-dependent random potentials

Abstract

Diffusion of electrons in a two-dimensional system with time-dependent random potentials is investigated numerically. The correction to the conductivity due to inelastic scatterings by oscillating potentials is shown to be a universal function of the frequency $\omega$, which is consistent with the weak localization prediction $(e^2)/(3{\pi }^2\hslash )log\omega$.

4 pages, RevTeX, 3 postscript figures, accepted in J. Phys. Soc. Jpn.(1997)Apr

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