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Role of non-Markovianity and backflow of information in the speed of quantum evolution

Cianciaruso, Marco; Maniscalco, Sabrina; Adesso, Gerardo

Authors

Marco Cianciaruso

Sabrina Maniscalco



Abstract

We consider a two-level open quantum system undergoing pure dephasing, dissipative, or multiply decohering dynamics and show that whenever the dynamics is non-Markovian, the initial speed of evolution is a monotonic function of the relevant physical parameter driving the transition between the Markovian and non-Markovian behavior of the dynamics. In particular, within the considered models, a speed increase can only be observed in the presence of backflow of information from the environment to the system.

Citation

Cianciaruso, M., Maniscalco, S., & Adesso, G. (2017). Role of non-Markovianity and backflow of information in the speed of quantum evolution. Physical Review A, 96(1), Article 012105. https://doi.org/10.1103/PhysRevA.96.012105

Journal Article Type Article
Acceptance Date Jun 14, 2017
Publication Date Jul 6, 2017
Deposit Date Jul 14, 2017
Publicly Available Date Mar 29, 2024
Journal Physical Review A
Print ISSN 2469-9926
Electronic ISSN 1094-1622
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 96
Issue 1
Article Number 012105
DOI https://doi.org/10.1103/PhysRevA.96.012105
Keywords Open quantum systems, Decoherence
Public URL https://nottingham-repository.worktribe.com/output/871751
Publisher URL https://doi.org/10.1103/PhysRevA.96.012105
Additional Information ©2017 American Physical Society

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