Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2000-05-05
Physics
Condensed Matter
Statistical Mechanics
4 pages, 5 figures (accepted as Phys. Rev. Lett.)
Scientific paper
10.1103/PhysRevLett.84.6014
We study a two-dimensional granular gas of inelastic spheres subject to multiplicative driving proportional to a power $|v(\vec{x})|^{\delta}$ of the local particle velocity $v(\vec{x})$. The steady state properties of the model are examined for different values of $\delta$, and compared with the homogeneous case $\delta=0$. A driving linearly proportional to $v(\vec{x})$ seems to reproduce some experimental observations which could not be reproduced by a homogeneous driving. Furthermore, we obtain that the system can be homogenized even for strong dissipation, if a driving inversely proportional to
Cafiero Raffaele
Herrmann Hans Jürgen
Luding Stefan
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