Volume 77, Number 5, March 2007
|Number of page(s)||5|
|Published online||16 February 2007|
Granular Brownian motor
Hasselt University - B-3590 Diepenbeek, Belgium
Accepted: 5 January 2007
An asymmetric object, undergoing dissipative collisions with surrounding particles, acquires a nonzero average velocity. The latter is calculated analytically by an expansion of the Boltzmann equation and the result is compared with Monte Carlo simulations.
PACS: 02.50.-r – Probability theory, stochastic processes, and statistics / 05.40.-a – Fluctuation phenomena, random processes, noise, and Brownian motion
© Europhysics Letters Association, 2007
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