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Type: Artigo de periódico
Title: On The Relaxation Time Hierarchy In Dissipative Systems: An Example From Semiconductor Physics
Author: Vasconcellos A.R.
Algarte A.C.
Luzzi R.
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. © 1990.
Citation: Physica A: Statistical Mechanics And Its Applications. , v. 166, n. 3, p. 517 - 539, 1990.
Rights: fechado
Identifier DOI: 10.1016/0378-4371(90)90071-Y
Date Issue: 1990
Appears in Collections:Unicamp - Artigos e Outros Documentos

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