Cited by 141Cold Atom Physics and Bose-Einstein CondensatesQuantum Information and CryptographyQuantum Mechanics and Applications

Quantifying, characterizing, and controlling information flow in ultracold atomic gases

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Haikka, P., McEndoo, S., De Chiara, G., Palma, G. M., Maniscalco, S.·2011·Physical Review A

Abstract

We study quantum information flow in a model comprised of a trapped impurity qubit immersed in a Bose-Einstein-condensed reservoir. We demonstrate how information flux between the qubit and the condensate can be manipulated by engineering the ultracold reservoir within experimentally realistic limits. We show that this system undergoes a transition from Markovian to non-Markovian dynamics, which can be controlled by changing key parameters such as the condensate scattering length. In this way, one can realize a quantum simulator of both Markovian and non-Markovian open quantum systems, the latter ones being characterized by a reverse flow of information from the background gas (reservoir) to the impurity (system).

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Crossref · 10.1103/physreva.84.031602

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  • Two experiments determining the non-Markovianity measure have been carried out employing photons moving in optical fibers or birefringent materials.

    “Quite recently, two experiments determining this quantity have been carried out employing photons moving in optical fibers or birefringent materials [44, 45].”

    From Foundations and measures of quantum non-Markovianity (2012) · cites this paper as [45]

  • A complete determination of the non-Markovianity measure is experimentally possible, including the realization of the maximization over initial states in the definition.

    “It has been demonstrated that a complete determination of the measure is experimentally possible, including the realization of the maximization over initial states in the definition (76).”

    From Foundations and measures of quantum non-Markovianity (2012) · cites this paper as [45]

  • Both the quantum measure for non-Markovianity and the witness for initial system-environment correlations have been demonstrated to be experimentally measurable quantities.

    “Both the quantum measure for non-Markovianity and the witness for initial systemenvironment correlations studied here have been demonstrated very recently to be experimentally measurable quantities [44, 45, 48, 49].”

    From Foundations and measures of quantum non-Markovianity (2012) · cites this paper as [45]

  • In these experiments, the open system is provided by the polarization degrees of freedom of the photons, while the environment is given by their frequency (mode) degrees of freedom.

    “In these experiments the open system is provided by the polarization degrees of freedom of the photons, while the environment is given by their frequency (mode) degrees of freedom.”

    From Foundations and measures of quantum non-Markovianity (2012) · cites this paper as [45]

  • A careful preparation of the initial environmental state allows control of the information flow between the system and its environment and observation of the transition from the Markovian to the non-Markovian regime through quantum state tomography on the open system.

    “It was shown further that a careful preparation of the initial environmental state allows to control the information flow between the system and its environment and to observe the transition from the Markovian to the non-Markovian regime through quantum state tomography carried out on the open system.”

    From Foundations and measures of quantum non-Markovianity (2012) · cites this paper as [45]

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  1. G. Roati et al., ibid. 453, 895 (2008). · DOI

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Authors
Haikka, P., McEndoo, S., De Chiara, G., Palma, G. M., & Maniscalco, S.
Affiliations
  • University of Turku (FI)
  • University of Palermo (IT)
Venue
Physical Review A
Published
2011-09-20
Volume
84
Issue
3
ISSN
  • 0556-2791 (ISSN-L)
  • 1050-2947
  • 1094-1622
OpenAlex
W1998640974
Cited by
141
References
36
Citations by year
2026: 3 · 2025: 9 · 2024: 11 · 2023: 6 · 2022: 5 · 2021: 8 · 2020: 8 · 2019: 8 · 2018: 8 · 2017: 16 · 2016: 9 · 2015: 12 · 2014: 17 · 2013: 15 · 2012: 6
FWCI
6.58
Type
journal article
Language
en
Open access
Locations
  • Physical Review A (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • Nova Science Publishers (Nova Science Publishers, Inc.) (submittedVersion, other-oa)
  • Research Portal (Queen's University Belfast) (submittedVersion)
  • arXiv (Cornell University)
Funders
  • Generalitat de Catalunya (00343)
  • Suomen Kulttuurirahasto
  • Emil Aaltosen Säätiö
  • Ministerio de Ciencia e Innovación
Topics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Cold Atom Physics and Bose-Einstein Condensates
  • Physical Sciences › Computer Science › Artificial Intelligence › Quantum Information and Cryptography
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum Mechanics and Applications
Keywords
quantum information flow, ultracold atoms, Bose-Einstein condensate, non-Markovian dynamics, Markovian dynamics, open quantum systems, quantum simulation, information backflow

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