Independent Particles in a Dynamical Random Environment

Details Independent Particles in a Dynamical Random Environment Independent Particles in a Dynamical Random Environment

2011-10-09

arxiv.org/abs/1110.1889v1

Mathematics

Probability

Scientific paper

We study the motion of independent particles in a dynamical random environment on the integer lattice. The environment has a product distribution. For the multidimensional case, we characterize the class of spatially ergodic invariant measures. These invariant distributions are mixtures of inhomogeneous Poisson product measures that depend on the past of the environment, and we also investigate the correlations in this measure. For dimensions one and two, we also prove convergence to equilibrium from spatially ergodic initial distributions. In the one-dimensional situation we study fluctuations of net current seen by an observer traveling at a deterministic speed. When this current is centered by its quenched mean its limit distributions are the same as for classical independent particles.

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