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- Title
Quantum correlation evolution of GHZ and $$W$$ states under noisy channels using ameliorated measurement-induced disturbance.
- Authors
Espoukeh, Pakhshan; Pedram, Pouria
- 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.
- Subjects
QUANTUM correlations; MATHEMATICAL optimization; ROBUST control; QUANTUM theory; QUANTUM entanglement
- Publication
Quantum Information Processing, 2015, Vol 14, Issue 1, p303
- ISSN
1570-0755
- Publication type
Article
- DOI
10.1007/s11128-014-0846-3