Data di Pubblicazione:
2013
Citazione:
Non-Markovian master equations from piecewise dynamics / B. Vacchini. - In: PHYSICAL REVIEW A. - ISSN 1050-2947. - 87:3(2013), pp. 030101.1-030101.4. [10.1103/PhysRevA.87.030101]
Abstract:
We construct a large class of completely positive and trace preserving non-Markovian dynamical maps for an open quantum system. These maps arise from a piecewise dynamics characterized by a continuous time evolution interrupted by jumps, randomly distributed in time and described by a quantum channel. The state of the open system is shown to obey a closed evolution equation, given by a master equation with a memory kernel and a inhomogeneous term. The non-Markovianity of the obtained dynamics is explicitly assessed studying the behavior of the distinguishability of two different initial system's states with elapsing time.
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
B. Vacchini
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