Data di Pubblicazione:
2000
Citazione:
Time scale and completely positive dynamical evolution / B. Vacchini - In: The foundations of quantum mechanics : historical analysis and open questions : Lecce, Italy, 13-16 October 1998 / [a cura di] C. Garola, A. Rossi. - Singapore : World Scientific, 2000. - ISBN 981024262X. - pp. 407-418
Abstract:
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.
Tipologia IRIS:
03 - Contributo in volume
Elenco autori:
B. Vacchini
Link alla scheda completa:
Titolo del libro:
The foundations of quantum mechanics : historical analysis and open questions : Lecce, Italy, 13-16 October 1998