6533b86dfe1ef96bd12ca975
RESEARCH PRODUCT
Overview on the phenomenon of two-qubit entanglement revivals in classical environments
Rosario Lo FrancoGiuseppe Compagnosubject
PhysicsQuantum discordSettore FIS/02 - Fisica Teorica Modelli E Metodi MatematiciQuantum dynamicsRevivals of entanglementNon-MarkovianityClassical environmentQuantum entanglement01 natural sciencesQuantum chaosSettore FIS/03 - Fisica Della Materia010305 fluids & plasmasOpen quantum systemTheoretical physicsQubitOpen quantum system0103 physical sciencesEntanglement Quantum correlationQuantum information010306 general physicsQuantum information sciencedescription
The occurrence of revivals of quantum entanglement between separated open quantum systems has been shown not only for dissipative non-Markovian quantum environments but also for classical environments in absence of back-action. While the phenomenon is well understood in the first case, the possibility to retrieve entanglement when the composite quantum system is subject to local classical noise has generated a debate regarding its interpretation. This dynamical property of open quantum systems assumes an important role in quantum information theory from both fundamental and practical perspectives. Hybrid quantum-classical systems are in fact promising candidates to investigate the interplay among quantum and classical features and to look for possible control strategies of a quantum system by means of a classical device. Here we present an overview on this topic, reporting the most recent theoretical and experimental results about the revivals of entanglement between two qubits locally interacting with classical environments. We also review and discuss the interpretations provided so far to explain this phenomenon, suggesting that they can be cast under a unified viewpoint.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-01-01 |