Migration of Unstable Vacuum for Dissipative Systems
| dc.creator | Arimitsu, Toshihico | |
| dc.date | 1998-09-16 | |
| dc.date | 1998-11-26 | |
| dc.date.accessioned | 2026-07-07T04:25:08Z | |
| dc.date.available | 2026-07-07T04:25:08Z | |
| dc.description | Quantum field theory is constructed upon the assumption of stabilities of the vacuum and of the one-particle state. For finite temperature, the one-particle state becomes unstable because of thermal fluctuations, whereas the thermal vacuum is still stable. In non-equilibrium situation, both the vacuum and the one-particle state lose their stability. Proposed is the introduction of the {\it reference vacuum} which takes care of thermal and non-adiabatic time-evolution of a system, and produces a time-dependent Fock's representation space. This may provide us with an extension of the concept of {\it dynamical mapping} where a migration among unitary inequivalent representation spaces can be handled for non-equilibrium and dissipative systems. | |
| dc.description | 10 pages, The 5th International Workshop on Thermal Field Theories and Its Applications (TFT98) | |
| dc.identifier | https://arxiv.org/abs/hep-th/9809117 | |
| dc.identifier | http://arxiv.org/abs/hep-th/9809117 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/55662 | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Migration of Unstable Vacuum for Dissipative Systems | |
| dc.type | text |