Dephasing by time-dependent random potentials

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 $ω$, which is consistent with the weak localization prediction $(e^2)/(3π^2 \hbar) log ω$.

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