Quantum Fisher Information of <i>N</i> Particles in the Superposition of <i>W</i> and GHZ States
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Date
2013
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Journal ISSN
Volume Title
Publisher
Springer/plenum Publishers
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Abstract
We investigate the quantum Fisher information of a multipartite entangled state of N particles in a superposition of W and GHZ states. We find that the mean quantum Fisher information per particle (RMQFI) decreases with respect to the number of the particles and the peak is observed between 0.6 and 0.8 values of the superposition coefficient of W state. We present the behavior of RMQFI for N from 2 to 10 and discuss some interesting results.
Description
Yesilyurt, Can/0000-0003-4949-3523; Altintas, Azmi Ali/0000-0003-2383-4705;
Keywords
Quantum Fisher information, N qubit state, W State, GHZ State
Turkish CoHE Thesis Center URL
Fields of Science
Citation
22
WoS Q
Q3
Scopus Q
Q2
Source
Volume
52
Issue
9
Start Page
2977
End Page
2980