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Pis'ma v Zh. Èksper. Teoret. Fiz., 2016, Volume 103, Issue 4, Pages 258–262 (Mi jetpl4866)  

PLASMA, HYDRO- AND GAS DYNAMICS

On real statistics of relaxation in gases

Yu. E. Kuzovlev

Donetsk Free Statistical Physics Laboratory, Donetsk Institute for Physics and Engineering, National Academy of Sciences of Ukraine, 83114, Donetsk, Ukraine

Abstract: By example of a particle interacting with ideal gas, it is shown that the statistics of collisions in statistical mechanics at any value of the gas rarefaction parameter qualitatively differ from that conjugated with Boltzmann's hypothetical molecular chaos and kinetic equation. In reality, the probability of collisions of the particle in itself is random. Because of that, the relaxation of particle velocity acquires a power-law asymptotic behavior. An estimate of its exponent is suggested on the basis of simple kinematic reasons.

DOI: https://doi.org/10.7868/S0370274X16040044

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English version:
Journal of Experimental and Theoretical Physics Letters, 2016, 103:4, 234–237

Bibliographic databases:

Received: 10.12.2015

Citation: Yu. E. Kuzovlev, “On real statistics of relaxation in gases”, Pis'ma v Zh. Èksper. Teoret. Fiz., 103:4 (2016), 258–262; JETP Letters, 103:4 (2016), 234–237

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  •       Pis'ma v Zhurnal ksperimental'noi i Teoreticheskoi Fiziki
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