Velocity distribution of a homogeneously driven two-dimensional granular gas
Soft Condensed Matter
2017-10-10 v1
Abstract
The theory of homogeneously driven granular gases of hard particles predicts that the stationary state is characterized by a velocity distribution function with overpopulated high-energy tails as compared to the exponential decay valid for molecular gases. While this fundamental theoretical result was confirmed by numerous numerical simulations, an experimental confirmation is still missing. Using self-rotating active granular particles, we find a power-law decay of the velocity distribution whose exponent agrees well with the theoretic prediction.
Keywords
Cite
@article{arxiv.1710.02860,
title = {Velocity distribution of a homogeneously driven two-dimensional granular gas},
author = {Christian Scholz and Thorsten Pöschel},
journal= {arXiv preprint arXiv:1710.02860},
year = {2017}
}