Relaxation of a Lorentz Gas with a Repulsive r—s Force Law
- 1 November 1964
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 41 (9) , 2661-2666
- https://doi.org/10.1063/1.1726334
Abstract
The relaxation of a Lorentz gas (dilute light particle subsystem in a heavy particle heat bath) has been studied for a repulsive r—s central force law interaction between the light and heavy particles. The Fokker—Planck equation for the velocity distribution functions of the light particle subsystem has been solved numerically for s=5, 9, 13, 21, and ∞ for various initial conditions. The dependence of the rate of relaxation and of the form of the time‐dependent velocity distribution function on the force law parameter s is discussed in light of the above results.Keywords
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