Symmetry breaking and coarsening of clusters in a prototypical driven granular gas

Details Symmetry breaking and coarsening of clusters in a prototypical driven granular gas Symmetry breaking and coarsening of clusters in a prototypical driven granular gas

2002-04-12

arxiv.org/abs/cond-mat/0204266v1

Physics

Condensed Matter

Soft Condensed Matter

5 pages, 4 eps figures

Scientific paper

10.1103/PhysRevE.66.050301

Granular hydrodynamics predicts symmetry-breaking instability in a two-dimensional (2D) ensemble of nearly elastically colliding smooth hard spheres driven, at zero gravity, by a rapidly vibrating sidewall. Super- and subcritical symmetry-breaking bifurcations of the simple clustered state are identified, and the supercritical bifurcation curve is computed. The cluster dynamics proceed as a coarsening process mediated by the gas phase. Far above the bifurcation point the final steady state, selected by coarsening, represents a single strongly localized densely packed 2D cluster.

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