Time Scale and Completely Positive Dynamical Evolutions
| dc.creator | Vacchini, B. | |
| dc.date | 2002-11-20 | |
| dc.date.accessioned | 2026-07-07T06:05:32Z | |
| dc.date.available | 2026-07-07T06:05:32Z | |
| dc.description | It is argued that in the description of macroscopic systems inside quantum mechanics the study of the dynamics of selected degrees of freedom slowly varying on a suitable time scale, corresponding to relevant observables for the given reduced description, is particularly meaningful. A formalism developing these ideas in the more simple case of a microsystem interacting with a macroscopic system is briefly outlined, together with an application to the field of neutron optics. The obtained reduced description relies on a T-matrix formalism and has the property of complete positivity. | |
| dc.description | 12 pages, no figures, contribution to the Proceedings of the Conference on The foundations of quantum mechanics - historical analysis and open questions, 1998 (Lecce, Italy) | |
| dc.identifier | https://arxiv.org/abs/quant-ph/0211128 | |
| dc.identifier | http://arxiv.org/abs/quant-ph/0211128 | |
| dc.identifier | The foundations of quantum mechanics - historical analysis and open questions, C. Garola and A. Rossi eds., p. 407-418, World Scientific, Singapore 2000 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/90669 | |
| dc.subject | Quantum Physics | |
| dc.title | Time Scale and Completely Positive Dynamical Evolutions | |
| dc.type | text |