Scaling in the one-dimensional Anderson localization problem in the region of fluctuation states
Abstract
We numerically study the distribution function of the conductivity (transmission) in the one-dimensional tight-binding Anderson model in the region of fluctuation states. We show that while single parameter scaling in this region is not valid, the distribution can still be described within a scaling approach based upon the ratio of two fundamental quantities, the localization length, lloc, and a new length, ls, related to the integral density of states. In an intermediate interval of the system's length L, lloc L ls, the variance of the Lyapunov exponent does not follow the predictions of the central limit theorem, and may even grow with L.
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