Published June 1985 | Version v1
Journal article Metadata-only

On nonequilibrium many-body systems. 1: The nonequilibrium statistical operator method

Creators

  • 1. Universidade Estadual de Campinas (Brazil). Inst. de Fisica
  • 2. Ceara Univ., Fortaleza (Brazil). Dept. de Fisica

Description

The theoretical aspects involved in the treatment of many-body systems strongly departed from equilibrium are discussed. The nonequilibrium statistical operator (NSO) method is considered in detail. Using Jaynes' maximum entropy formalism complemented with an ad hoc hypothesis a nonequilibrium statistical operator is obtained. This approach introduces irreversibility from the outset and we recover statistical operators like those of Green-Mori and Zubarev as particular cases. The connection with Generalized Thermodynamics and the construction of nonlinear transport equations are briefly described. (Author)

Abstract (Portuguese)

Sao discutidos aspectos teoricos envolvidos no tratamento de sistemas de muitos corpos afastados do equilibrio. Considera-se, em detalhe, o metodo do operador estatistico de nao-equilibrio. Usando o formalismo da maximizacao da 'entropia' juntamente com uma hipotese ad hoc, desenvolve-se um metodo para obter operadores estatisticos de nao-equilibrio. Esse tratamento recupera, como casos particulares, os operadores de Green-Mori e de Zubarev. Descreve-se sumariamente a conexao com a Termodinamica Generalizada e a construcao das equacoes de transporte nao-lineares. (Autor)

Additional details

Publishing Information

Journal Title
Rev. Bras. Fis.
Journal Volume
15
Journal Issue
2
Series
Rev. Bras. Fis.
Journal Page Range
106-127
ISSN
0374-4922
CODEN
RBFSA

INIS

Country of Publication
Brazil
Country of Input or Organization
Brazil
INIS RN
17052477
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
BOLTZMANN-VLASOV EQUATION; BOUNDARY CONDITIONS; ENTROPY; MANY-BODY PROBLEM; MATHEMATICAL OPERATORS; NONLINEAR PROBLEMS; STATISTICAL MECHANICS; THERMODYNAMICS; TIME DEPENDENCE
Descriptors DEC
DIFFERENTIAL EQUATIONS; EQUATIONS; MECHANICS; PARTIAL DIFFERENTIAL EQUATIONS; PHYSICAL PROPERTIES; THERMODYNAMIC PROPERTIES