Deterministic Walks in Quenched Random Environments of Chaotic Maps

Details Deterministic Walks in Quenched Random Environments of Chaotic Maps Deterministic Walks in Quenched Random Environments of Chaotic Maps

2009-01-14

arxiv.org/abs/0901.1875v1

J. Phys. A: Math. Theor. 42 (2009) 245101 (14pp)

Mathematics

Dynamical Systems

18 pages, 9 figures

Scientific paper

10.1088/1751-8113/42/24/245101

This paper concerns the propagation of particles through a quenched random medium. In the one- and two-dimensional models considered, the local dynamics is given by expanding circle maps and hyperbolic toral automorphisms, respectively. The particle motion in both models is chaotic and found to fluctuate about a linear drift. In the proper scaling limit, the cumulative distribution function of the fluctuations converges to a Gaussian one with system dependent variance while the density function shows no convergence to any function. We have verified our analytical results using extreme precision numerical computations.

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