Hidden non-Markovianity in open quantum systems

Daniel Burgarth, Paolo Facchi, Marilena Ligabò, Davide Lonigro

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)
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We show that non-Markovian open quantum systems can exhibit exact Markovian dynamics up to an arbitrarily long time; the non-Markovianity of such systems is thus perfectly "hidden,"i.e., not experimentally detectable by looking at the reduced dynamics alone. This shows that non-Markovianity is physically undecidable and extremely counterintuitive, since its features can change at any time, without precursors. Some interesting examples are discussed.

Original languageEnglish
Article number012203
Pages (from-to)1-9
Number of pages9
JournalPhysical Review A
Issue number1
Publication statusPublished - 7 Jan 2021

Bibliographical note

Copyright 2021 American Physical Society. Firstly published in Physical Review A, 103(1), 012203. The original publication is available at https://doi.org/10.1103/PhysRevA.103.012203. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

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