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.
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]
Non-Markovian master equations from piecewise dynamics
B. VacchiniPrimo
2013
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.File | Dimensione | Formato | |
---|---|---|---|
PhysRevA.87.030101.pdf
accesso riservato
Descrizione: Articolo
Tipologia:
Publisher's version/PDF
Dimensione
802.9 kB
Formato
Adobe PDF
|
802.9 kB | Adobe PDF | Visualizza/Apri Richiedi una copia |
Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.