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Open Quantum Systems Decoherence

Quantum non-Markovianity elusive to interventions

arXiv
Authors: Daniel Burgarth, Paolo Facchi, Davide Lonigro, Kavan Modi

Year

2021

Paper ID

62428

Status

Preprint

Abstract Read

~2 min

Abstract Words

88

Citations

N/A

Abstract

The non-Markovian nature of open quantum dynamics lies in the structure of the multitime correlations, which are accessible by means of interventions. Here, by examining multitime correlations, we show that it is possible to engineer non-Markovian systems with only long-term memory but seemingly no short-term memory, so that their non-Markovianity is completely non-detectable by any interventions up to an arbitrarily large time. Our results raise the question about the assessibility of non-Markovianity: in principle, non-Markovian effects that are perfectly elusive to interventions may emerge at much later times.

Why This Paper Matters

  • This paper contributes to the Open Quantum Systems & Decoherence research area in the Quantum Articles archive.
  • It adds a 2021 reference point for readers tracking recent quantum research.
  • The non-Markovian nature of open quantum dynamics lies in the structure of the multitime correlations, which are accessible by means of interventions.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2108.05750 [2] arXiv https://arxiv.org/abs/2108.05750 [3] Publisher https://arxiv.org/abs/2108.05750

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