Violation of Molecular Chaos in dissipative gases
classification
❄️ cond-mat.stat-mech
keywords
coefficientdissipativeratevelocityanalyticalchaoscharacterizescollisions
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Numerical simulations of a dissipative hard sphere gas reveal a dependence of the cooling rate on correlation of the particle velocities due to inelastic collisions. We propose a coefficient which characterizes the velocity correlations in the two-particle velocity distribution function and express the temperature decay rate in terms of this coefficient. The analytical results are compared with numerics.
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