Exact Results on Sinai's Diffusion

Details Exact Results on Sinai's Diffusion Exact Results on Sinai's Diffusion

1998-09-07

arxiv.org/abs/cond-mat/9809111v1

J. Phys. A. 31, 8595 (1998).

Physics

Condensed Matter

14 pages Latex. To appear J. Phys. A

Scientific paper

10.1088/0305-4470/31/43/004

We study the continuum version of Sinai's problem of a random walker in a random force field in one dimension. A method of stochastic representations is used to represent various probability distributions in this problem (mean probability density function and first passage time distributions). This method reproduces already known rigorous results and also confirms directly some recent results derived using approximation schemes. We demonstrate clearly, in the Sinai scaling regime, that the disorder dominates the problem and that the thermal distributions tend to zero-one laws.

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