Role of non-Markovianity and backflow of information in the speed of quantum evolution
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 Marko...
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| Format: | Article |
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American Physical Society
2017
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| Online Access: | https://eprints.nottingham.ac.uk/44202/ |
| _version_ | 1848796861483188224 |
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| author | Cianciaruso, Marco Maniscalco, Sabrina Adesso, Gerardo |
| author_facet | Cianciaruso, Marco Maniscalco, Sabrina Adesso, Gerardo |
| author_sort | Cianciaruso, Marco |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | 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. |
| first_indexed | 2025-11-14T19:54:42Z |
| format | Article |
| id | nottingham-44202 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:54:42Z |
| publishDate | 2017 |
| publisher | American Physical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-442022020-05-04T18:54:36Z https://eprints.nottingham.ac.uk/44202/ Role of non-Markovianity and backflow of information in the speed of quantum evolution Cianciaruso, Marco Maniscalco, Sabrina Adesso, Gerardo 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. American Physical Society 2017-07-06 Article PeerReviewed Cianciaruso, Marco, Maniscalco, Sabrina and Adesso, Gerardo (2017) Role of non-Markovianity and backflow of information in the speed of quantum evolution. Physical Review A, 96 (1). 012105/1-012105/5. ISSN 1094-1622 Open quantum systems Decoherence https://doi.org/10.1103/PhysRevA.96.012105 doi:10.1103/PhysRevA.96.012105 doi:10.1103/PhysRevA.96.012105 |
| spellingShingle | Open quantum systems Decoherence Cianciaruso, Marco Maniscalco, Sabrina Adesso, Gerardo Role of non-Markovianity and backflow of information in the speed of quantum evolution |
| title | Role of non-Markovianity and backflow of information in the speed of quantum evolution |
| title_full | Role of non-Markovianity and backflow of information in the speed of quantum evolution |
| title_fullStr | Role of non-Markovianity and backflow of information in the speed of quantum evolution |
| title_full_unstemmed | Role of non-Markovianity and backflow of information in the speed of quantum evolution |
| title_short | Role of non-Markovianity and backflow of information in the speed of quantum evolution |
| title_sort | role of non-markovianity and backflow of information in the speed of quantum evolution |
| topic | Open quantum systems Decoherence |
| url | https://eprints.nottingham.ac.uk/44202/ https://eprints.nottingham.ac.uk/44202/ https://eprints.nottingham.ac.uk/44202/ |