| Journal: | Brazilian journal of physics |
| Database: | PERIÓDICA |
| System number: | 000309129 |
| ISSN: | 0103-9733 |
| Authors: | Silva, Lourival M. da1 Santana, Ademir E2 Vianna, J. David M |
| Institutions: | 1Universidade do Estado da Bahia, Departamento de Ciencias, Alagoinhas, Bahia. Brasil 2Universidade Federal da Bahia, Instituto de Fisica, Salvador, Bahia. Brasil |
| Year: | 1997 |
| Season: | Dic |
| Volumen: | 27 |
| Number: | 4 |
| Pages: | 619-631 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental |
| English abstract | A nonequilibrium statistical operator (NSO) is built for classical sistems using a field theory in classical phase space, which is but a classical version of the thermofield dynamics formalism. The approach developed here starts with a second-quantized version of this phase-space field theory. Then elements of symmetry are analysed and invariants of the theory are introduced. The local conservation laws are derived and used to make explicit NSO. Such a method is applied to derive the Fokker-Planck-Kramers equation |
| Disciplines: | Física y astronomía |
| Keyword: | Termodinámica y física estadística, Teoría de campos, Mecánica estadística, Sistemas fuera de equilibrio |
| Keyword: | Physics and astronomy, Thermodynamics and statistical physics, Field theory, Statistical mechanics, Nonequilibrium systems |
| Full text: | Texto completo (Ver HTML) |
