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Quantum Information Processing
Published in: Quantum Information Processing 1/2015

01-01-2015

Quantum correlation evolution of GHZ and \(W\) states under noisy channels using ameliorated measurement-induced disturbance

Authors: Pakhshan Espoukeh, Pouria Pedram

Published in: Quantum Information Processing | Issue 1/2015

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Abstract

We study quantum correlation of Greenberger–Horne–Zeilinger (GHZ) and W states under various noisy channels using measurement-induced disturbance approach and its optimized version. Although these inequivalent maximal entangled states represent the same quantum correlation in the absence of noise, it is shown that the W state is more robust than the GHZ state through most noisy channels. Also, using measurement-induced disturbance measure, we obtain the analytical relations for the time evolution of quantum correlations in terms of the noisy parameter \(\kappa \) and remove its overestimating quantum correlations upon implementing the ameliorated measurement-induced disturbance.
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Metadata
Title
Quantum correlation evolution of GHZ and states under noisy channels using ameliorated measurement-induced disturbance
Authors
Pakhshan Espoukeh
Pouria Pedram
Publication date
01-01-2015
Publisher
Springer US
Published in
Quantum Information Processing / Issue 1/2015
Print ISSN: 1570-0755
Electronic ISSN: 1573-1332
DOI
https://doi.org/10.1007/s11128-014-0846-3

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