Driving-induced amplification of non-Markovianity in open quantum systems evolution
Non-Markovian effects arising in open quantum system evolution have been a subject of increasing interest over the past decade. One of the most appealing features of non-Markovianity (NM) is that it captures scenarios where loss of information and coherence are reversible, and thus a temporary backf...
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todo:paper_02955075_v118_n2_p_Poggi2023-10-03T15:17:22Z Driving-induced amplification of non-Markovianity in open quantum systems evolution Poggi, P.M. Lombardo, F.C. Wisniacki, D.A. Non-Markovian effects arising in open quantum system evolution have been a subject of increasing interest over the past decade. One of the most appealing features of non-Markovianity (NM) is that it captures scenarios where loss of information and coherence are reversible, and thus a temporary backflow of information from the environment to the system is possible. In this work we study the interplay between the degree of non-Markovianity and the action of time-dependent control fields in an open two-level quantum system. We find that periodical modulation of a field acting solely on the system can greatly enhance the degree of non-Markovianity with respect to the undriven case. We show that this effect is present only when the coupling between system and environment is weak. Remarkably, the enhancement disappears at strong coupling, which is usually the regime where non-Markovian effects are expected to be more pronounced. Copyright © EPLA, 2017. Fil:Lombardo, F.C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Wisniacki, D.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_02955075_v118_n2_p_Poggi |
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Universidad de Buenos Aires |
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I-28 |
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R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| description |
Non-Markovian effects arising in open quantum system evolution have been a subject of increasing interest over the past decade. One of the most appealing features of non-Markovianity (NM) is that it captures scenarios where loss of information and coherence are reversible, and thus a temporary backflow of information from the environment to the system is possible. In this work we study the interplay between the degree of non-Markovianity and the action of time-dependent control fields in an open two-level quantum system. We find that periodical modulation of a field acting solely on the system can greatly enhance the degree of non-Markovianity with respect to the undriven case. We show that this effect is present only when the coupling between system and environment is weak. Remarkably, the enhancement disappears at strong coupling, which is usually the regime where non-Markovian effects are expected to be more pronounced. Copyright © EPLA, 2017. |
| format |
JOUR |
| author |
Poggi, P.M. Lombardo, F.C. Wisniacki, D.A. |
| spellingShingle |
Poggi, P.M. Lombardo, F.C. Wisniacki, D.A. Driving-induced amplification of non-Markovianity in open quantum systems evolution |
| author_facet |
Poggi, P.M. Lombardo, F.C. Wisniacki, D.A. |
| author_sort |
Poggi, P.M. |
| title |
Driving-induced amplification of non-Markovianity in open quantum systems evolution |
| title_short |
Driving-induced amplification of non-Markovianity in open quantum systems evolution |
| title_full |
Driving-induced amplification of non-Markovianity in open quantum systems evolution |
| title_fullStr |
Driving-induced amplification of non-Markovianity in open quantum systems evolution |
| title_full_unstemmed |
Driving-induced amplification of non-Markovianity in open quantum systems evolution |
| title_sort |
driving-induced amplification of non-markovianity in open quantum systems evolution |
| url |
http://hdl.handle.net/20.500.12110/paper_02955075_v118_n2_p_Poggi |
| work_keys_str_mv |
AT poggipm drivinginducedamplificationofnonmarkovianityinopenquantumsystemsevolution AT lombardofc drivinginducedamplificationofnonmarkovianityinopenquantumsystemsevolution AT wisniackida drivinginducedamplificationofnonmarkovianityinopenquantumsystemsevolution |
| _version_ |
1782027907316580352 |