Breakdown of Hydrodynamics in a One-Dimensional System of Inelastic Particles
- 20 February 1995
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 74 (8) , 1268-1271
- https://doi.org/10.1103/physrevlett.74.1268
Abstract
We study dynamics of nearly elastic particles constrained to move on a line with energy input from the boundaries. We find that for typical initial conditions, the system evolves to an “extraordinary” state with particles separated to two groups: The majority of the particles get clamped into a small region of space and move with very slow velocities; a few remaining particles travel between the boundaries at much higher speeds. Such a state clearly violates equipartition of energy. The simplest hydrodynamic approach fails to give a correct description of the system.Keywords
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