| Revista: | Brazilian journal of physics |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000142445 |
| ISSN: | 0103-9733 |
| Autores: | Luzzi, R1 Vasconcellos, A.R Ramos, J.G |
| Instituciones: | 1Universidade Estadual de Campinas, Instituto de Fisica "Gleb Wataghin", Campinas, Sao Paulo. Brasil |
| Año: | 1998 |
| Periodo: | Jun |
| Volumen: | 28 |
| Número: | 2 |
| Paginación: | 97-110 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Analítico |
| Resumen en inglés | We consider the question of the existence of a generalized H-theorem in the context of the variational method in the information-theoretical approach that generates the nonequilibrium statistical operator formalism. After briefly reviewing how the latter provides mechano-statistical foundations for phenomenological irreversible thermodynamics, the so-called Informational Statistical Thermodynamics, we discuss how dissipative phenomena are accounted for by the procedure. Such effects are related to a generalized H-theorem and a weak criterion of positive entropy production. These results are a consequence of the definition of a coarse-grained statistical entropy, resulting from the projection of the full nonequilibrium distribution on the subspace of the slow relaxing dynamical quantities, that are appropriate for the description of the irreversible evolution of the system from the state of initial preparation |
| Disciplinas: | Física y astronomía |
| Palabras clave: | Física, Termodinámica y física estadística, Termodinámica irreversible, Teoría de la información, Producción de entropía, Teorías estadísticas |
| Keyword: | Physics and astronomy, Physics, Thermodynamics and statistical physics, Stochastic processes, Non Markovian processes, Ion transport, Statistical mechanics |
| Texto completo: | Texto completo (Ver HTML) |
