Chaturvedi, S. ; Srinivasan, V. ; Agarwal, G. S. (1999) Quantum phase space distributions in thermofield dynamics Journal of Physics A: Mathematical and General, 32 (10). pp. 1909-1918. ISSN 0305-4470
![[img]](http://repository.ias.ac.in/style/images/fileicons/application_pdf.png)
|
PDF
- Publisher Version
135kB |
Official URL: http://iopscience.iop.org/0305-4470/32/10/009
Related URL: http://dx.doi.org/10.1088/0305-4470/32/10/009
Abstract
It is shown that the quantum phase space distributions corresponding to a density operator ρ can be expressed, in thermofield dynamics, as overlaps between the state |ρ> and `thermal' coherent states. The usefulness of this approach is brought out in the context of a master equation describing a nonlinear oscillator for which exact expressions for the quantum phase distributions for an arbitrary initial condition are derived.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Institute of Physics. |
| ID Code: | 7007 |
| Deposited On: | 26 Oct 2010 04:40 |
| Last Modified: | 16 May 2016 17:16 |
Repository Staff Only: item control page
