A classical long-time tail in a driven granular fluid
Soft Condensed Matter
2019-02-19 v1 Statistical Mechanics
Abstract
I derive a mode-coupling theory for the velocity autocorrelation function, \psi(t), in a fluid of randomly driven inelastic hard spheres far from equilibrium. With this, I confirm a conjecture from simulations that the velocity autocorrelation function decays algebraically, \psi(t) ~ t^{-3/2}, if momentum is conserved. I show that the slow decay is due to the coupling to transverse currents.
Cite
@article{arxiv.1308.3991,
title = {A classical long-time tail in a driven granular fluid},
author = {W. Till Kranz},
journal= {arXiv preprint arXiv:1308.3991},
year = {2019}
}
Comments
10 pages