Cited by 106Quantum Information and CryptographyQuantum Mechanics and ApplicationsAdvanced Thermodynamics and Statistical Mechanics

Memory-keeping effects and forgetfulness in the dynamics of a qubit coupled to a spin chain

Open access
Apollaro, Tony J. G., Di Franco, Carlo, Plastina, Francesco, Paternostro, Mauro·2011·Physical Review A

Abstract

Using recently proposed measures for non-Markovianity [H.-P. Breuer, E. M. Laine, and J. Piilo, Phys. Rev. Lett. 103, 210401 (2009)], we study the dynamics of a qubit coupled to a spin environment via an energy-exchange mechanism. We show the existence of a point, in the parameter space of the system, where the qubit dynamics is effectively Markovian and that such a point separates two regions with completely different dynamical behaviors. Indeed, our study demonstrates that the qubit evolution can in principle be tuned from a perfectly forgetful one to a deep non-Markovian regime where the qubit is strongly affected by the dynamical backaction of the environmental spins. By means of a theoretical quantum process tomography analysis, we provide a complete and intuitive characterization of the qubit channel.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1103/physreva.83.032103

Cites

45 of 45 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Equation (87) leads to an experimentally realizable scheme for the local detection of correlations in an unknown total system's initial state ρ1(0).

    “Equation (87) leads to an experimentally realizable scheme for the local detection of correlations in an unknown total system's initial state ρ 1 (0) as follows [46].”

    From Foundations and measures of quantum non-Markovianity (2012) · cites this paper as [46]

  • For the dephasing map, CP-divisibility leads to the same constraint (58) as P-divisibility.

    “In order to assess when CP-divisibility holds, one can consider positivity of the associated Choi matrix [37], which still leads to the constraint (58).”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 2

  1. [6]S. Bose, Contemp. Phys. 48, 13 (2007); S. Bose, Phys. Rev. Lett. 91 , 207901 (2003); M. Christandl et al. , Phys. Rev. A 71, 032312 (2005); L. Campos Venuti, C. Degli Esposti Boschi, and M. Roncaglia, Phys. Rev. Lett. 99 , 060401 (2007); C. Di Franco, M. Paternostro, M. S. Kim, Phys. Rev. Lett. 101 , 230502 (2008); F. Plastina and T. J. G. Apollaro, ibid. 99 , 177210 (2007); G. Gualdi, V. Kostak, I. Marzoli, and P. Tombesi, Phys. Rev. A 78 , 022325 (2008).
  2. [10]C. Di Franco, M. Paternostro, G. M. Palma, and M. S. Kim, Phys. Rev. A 76 , 042316 (2007); C. Di Franco, M. Paternostro, and G. M. Palma, Int. J. Quant. Inf. 6 , Supp. 1, 659 (2008).

Cited by

Sorted by citations

Authors
Apollaro, T. J. G., Di Franco, C., Plastina, F., & Paternostro, M.
Affiliations
  • University of Florence (IT)
  • Istituto Nazionale di Fisica Nucleare, Gruppo Collegato di Cosenza (IT)
  • Queen's University Belfast (GB)
Venue
Physical Review A
Published
2011-03-02
Volume
83
Issue
3
ISSN
  • 0556-2791 (ISSN-L)
  • 1050-2947
  • 1094-1622
OpenAlex
W2074576631
Cited by
106
References
45
Citations by year
2026: 1 · 2025: 10 · 2024: 7 · 2023: 2 · 2022: 2 · 2021: 1 · 2020: 6 · 2019: 6 · 2018: 4 · 2017: 5 · 2016: 7 · 2015: 12 · 2014: 12 · 2013: 13 · 2012: 12
FWCI
12.64
Type
journal article
Language
en
Open access
Locations
  • Physical Review A (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • Arrow@dit (Dublin Institute of Technology) (submittedVersion)
  • Cork Open Research Archive (University College Cork, Ireland) (submittedVersion)
  • Research Portal (Queen's University Belfast) (submittedVersion)
  • arXiv (Cornell University)
Funders
Engineering and Physical Sciences Research Council (EP/G004579/1)
Topics
  • 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
  • Physical Sciences › Physics and Astronomy › Statistical and Nonlinear Physics › Advanced Thermodynamics and Statistical Mechanics
Keywords
non-Markovianity, quantum backaction, quantum process tomography, open quantum system dynamics

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review