On the relaxation time hierarchy in dissipative systems: An example from semiconductor physics

A.R. Vasconcellos, A.C. Algarte and R. Luzzi

Physica A: Statistical Mechanics and its Applications, 1990, vol. 166, issue 3, 517-539

Abstract: We consider the question of the contraction of the macroscopic nonequilibrium thermodynamic description of dissipative dynamic systems. As argumented by Bogoliubov, this process is associated to the determination of a spectrum (hierarchy) of relaxation times. We have used studies of the irreversible evolution of highly photoexcited plasmas in polar semiconductors to provide a way to exemplify and test the existence of such a spectrum of characteristic times. It is shown that, in fact, several kinetic stages can be characterized, each accompanied by a successive contraction in the description of the macroscopic state of the system. A proper choice, depending on the experimental conditions, leads to good agreement with observational data.

Date: 1990
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:166:y:1990:i:3:p:517-539

DOI: 10.1016/0378-4371(90)90071-Y

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