Wigner distribution function and entropy of the damped harmonic oscillator within the theory of open quantum systems
| dc.creator | Isar, Aurelian | |
| dc.date | 1994-04-21 | |
| dc.date.accessioned | 2026-07-07T04:20:10Z | |
| dc.date.available | 2026-07-07T04:20:10Z | |
| dc.description | The harmonic oscillator with dissipation is studied within the framework of the Lindblad theory for open quantum systems. By using the Wang-Uhlenbeck method, the Fokker-Planck equation, obtained from the master equation for the density operator, is solved for the Wigner distribution function, subject to either the Gaussian type or the $δ$-function type of initial conditions. The obtained Wigner functions are two-dimensional Gaussians with different widths. Then a closed expression for the density operator is extracted. The entropy of the system is subsequently calculated and its temporal behaviour shows that this quantity relaxes to its equilibrium value. | |
| dc.description | 8 pages, Latex (Contribution to the Second Workshop on Harmonic Oscillators, Cocoyoc, Mexico, March 23-25, 1994) | |
| dc.identifier | https://arxiv.org/abs/hep-th/9404129 | |
| dc.identifier | http://arxiv.org/abs/hep-th/9404129 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/53853 | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Wigner distribution function and entropy of the damped harmonic oscillator within the theory of open quantum systems | |
| dc.type | text |