Data di Pubblicazione:
2021
Citazione:
Memory Effects in Quantum Dynamics Modelled by Quantum Renewal Processes / N. Megier, M. Ponzi, A. Smirne, B.M. Vacchini. - In: ENTROPY. - ISSN 1099-4300. - 23:7(2021 Jul 16), pp. 905.1-905.20. [10.3390/e23070905]
Abstract:
Simple, controllable models play an important role in learning how to manipulate and control quantum resources. We focus here on quantum non-Markovianity and model the evolution of open quantum systems by quantum renewal processes. This class of quantum dynamics provides us with a phenomenological approach to characterise dynamics with a variety of non-Markovian behaviours, here described in terms of the trace distance between two reduced states. By adopting a trajectory picture for the open quantum system evolution, we analyse how non-Markovianity is influenced by the constituents defining the quantum renewal process, namely the time-continuous part of the dynamics, the type of jumps and the waiting time distributions. We focus not only on the mere value of the non-Markovianity measure, but also on how different features of the trace distance evolution are altered, including times and number of revivals.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
open quantum systems; renewal processes; memory effects; master equations; non-Markovianity;
Elenco autori:
N. Megier, M. Ponzi, A. Smirne, B.M. Vacchini
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