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Quantum Information Processing

The dynamic behaviors of local quantum uncertainty for three-qubit X states under decoherence channels

  • 01-08-2019
Published in:
Authors
A. Slaoui
M. Daoud
R. Ahl Laamara
Published in
Quantum Information Processing | Issue 8/2019

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Abstract

We derive the analytical expression of local quantum uncertainty for three-qubit X states. We give also the expressions of quantum discord and the negativity. A comparison of these three quantum correlations quantifiers is discussed in the special cases of mixed GHZ states and Bell-type states. We find that local quantum uncertainty gives the same amount of non-classical correlations as are measured by entropic quantum discord and goes beyond negativity. We also discuss the dynamics of non-classical correlations under the effect of phase damping, depolarizing and phase reversal channels. We find the local quantum uncertainty shows more robustness and exhibits, under phase reversal effect, revival and frozen phenomena. The monogamy property of local quantum uncertainty is also discussed. It is shown that it is monogamous for three-qubit states.

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previous article Estimation of entanglement in bipartite systems directly from tomograms
next article Linear optics-based entanglement concentration protocols for cluster-type entangled coherent state
Title
The dynamic behaviors of local quantum uncertainty for three-qubit X states under decoherence channels
Authors
A. Slaoui
M. Daoud
R. Ahl Laamara
Publication date
01-08-2019
Publisher
Springer US
Published in
Quantum Information Processing / Issue 8/2019
Print ISSN: 1570-0755
Electronic ISSN: 1573-1332
DOI
https://doi.org/10.1007/s11128-019-2363-x
This content is only visible if you are logged in and have the appropriate permissions.
This content is only visible if you are logged in and have the appropriate permissions.

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