Angular velocity distribution of a granular planar rotator in a thermalized bath

Details Angular velocity distribution of a granular planar rotator in a thermalized bath Angular velocity distribution of a granular planar rotator in a thermalized bath

2006-10-04

arxiv.org/abs/cond-mat/0610112v1

Physics

Condensed Matter

Soft Condensed Matter

10 Pages, 9 Figures

Scientific paper

10.1103/PhysRevE.75.051307

The kinetics of a granular planar rotator with a fixed center undergoing inelastic collisions with bath particles is analyzed both numerically and analytically by means of the Boltzmann equation. The angular velocity distribution evolves from quasi-gaussian in the Brownian limit to an algebraic decay in the limit of an infinitely light particle. In addition, we compare this model with a planar rotator with a free center. We propose experimental tests that might confirm the predicted behaviors.

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