Regular Article - Theoretical Physics
Beyond the relaxation time approximation
Department of Fundamental Research, National Centre for Nuclear Research, 02-093, Warsaw, Poland
2 Institute of Physics, Jan Kochanowski University, 25-406, Kielce, Poland
Accepted: 20 June 2021
Published online: 6 July 2021
The relaxation time approximation (RTA) is a well known method of describing the time evolution of a statistical ensemble by linking distributions of the variables of interest at different stages of their temporal evolution. We show that if all the distributions occurring in the RTA have the same functional form of a quasi-power Tsallis distribution the time evolution of which depends on the time evolution of its control parameter, nonextensivity q(t), then it is more convenient to consider only the time evolution of this control parameter.
© The Author(s) 2021
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