Diffusion and superdiffusion in lattice models of colliding particles with stored momentum

Edward Crane; Sean Ledger; Balint Toth

doi:10.1007/s10955-019-02419-9

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arXiv · 1809.03257

Diffusion and superdiffusion in lattice models of colliding particles with stored momentum

Edward Crane·Sean Ledger·Balint Toth

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Abstract

We introduce two discrete models of a collection of colliding particles with stored momentum and study the asymptotic growth of the mean-square displacement of an active particle. We prove that the models are superdiffusive in one dimension (with power law correction) and diffusive in three and higher dimensions. In two dimensions we demonstrate superdiffusivity (with logarithmic correction) for certain anisotropic initial conditions.

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Edward Crane, Sean Ledger, Balint Toth. 2018-09-10. Diffusion and superdiffusion in lattice models of colliding particles with stored momentum. https://doi.org/10.1007/s10955-019-02419-9

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