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Type: Artigo de periódico
Title: The informational-statistical-entropy operator in a nonequilibrium ensemble formalism
Author: Hassan, SA
Vasconcellos, AR
Luzzi, R
Abstract: We study the eigenvalue spectrum of the informational-statistical-entropy operator, a quantity that plays a fundamental role in the nonequilibrium statistical operator method. We obtain explicit expressions for the informational entropy for inhomogeneous nonequilibrium (dissipative) systems, relevant for the study of its nonclassical nonlinear hydrodynamics. Expressions for the single-particle dynamical matrix and, in particular, for the distribution functions of quasi-particles, in conditions arbitrarily away from equilibrium, are also derived. We apply the results considering some aspects of the hydrodynamics of a Fermion system in weak interaction with a thermal bath of Bosons. (C) 1999 Elsevier Science B.V. All rights reserved.
Subject: nonequilibrium statistical mechanics
informational entropy
statistical irreversible thermodynamics
nonlinear kinetic theory
Country: Holanda
Editor: Elsevier Science Bv
Rights: fechado
Identifier DOI: 10.1016/S0378-4371(98)00405-1
Date Issue: 1999
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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