A note on continuous ensemble expansions of quantum states
| dc.creator | Zapatrin, Roman R. | |
| dc.date | 2004-03-15 | |
| dc.date.accessioned | 2026-07-07T06:09:18Z | |
| dc.date.available | 2026-07-07T06:09:18Z | |
| dc.description | Generalizing the notion of relative entropy, the difference between a priori and a posteriori relative entropy for quantum systems is drawn. The former, known as quantum relative entropy, is associated with quantum states recognition. The latter -- a posteriori relative quantum entropy is shown to be related with state reconstruction due to the following property: given a density operator $ρ$, ensembles of pure states with Gibbs distribution with respect to the defined distance are proved to represent the initial state $ρ$ up to an amount of white noise (completely mixed state) which can be made arbitrary small. | |
| dc.description | LaTeX 2e, 3 PS figures, 4 pages + 3 pages appendix | |
| dc.identifier | https://arxiv.org/abs/quant-ph/0403105 | |
| dc.identifier | http://arxiv.org/abs/quant-ph/0403105 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/91915 | |
| dc.subject | Quantum Physics | |
| dc.title | A note on continuous ensemble expansions of quantum states | |
| dc.type | text |