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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Autores principales: Lombardo, Fernando César, Wisniacki, Diego A.
Publicado: 2017
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02955075_v118_n2_p_Poggi
http://hdl.handle.net/20.500.12110/paper_02955075_v118_n2_p_Poggi
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_02955075_v118_n2_p_Poggi
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spelling paper:paper_02955075_v118_n2_p_Poggi2023-06-08T15:27:06Z Driving-induced amplification of non-Markovianity in open quantum systems evolution Lombardo, Fernando César Wisniacki, Diego 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. 2017 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02955075_v118_n2_p_Poggi http://hdl.handle.net/20.500.12110/paper_02955075_v118_n2_p_Poggi
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection 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.
author Lombardo, Fernando César
Wisniacki, Diego A.
spellingShingle Lombardo, Fernando César
Wisniacki, Diego A.
Driving-induced amplification of non-Markovianity in open quantum systems evolution
author_facet Lombardo, Fernando César
Wisniacki, Diego A.
author_sort Lombardo, Fernando César
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
publishDate 2017
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02955075_v118_n2_p_Poggi
http://hdl.handle.net/20.500.12110/paper_02955075_v118_n2_p_Poggi
work_keys_str_mv AT lombardofernandocesar drivinginducedamplificationofnonmarkovianityinopenquantumsystemsevolution
AT wisniackidiegoa drivinginducedamplificationofnonmarkovianityinopenquantumsystemsevolution
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