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arXiv:1006.2627 · Physical Review A

Local and nonlocal contents in N -qubit generalized Greenberger-Horne-Zeilinger states

Chang-Liang Ren, Mahn‐Soo Choi

Published Nov 9, 2010• 0 citations
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Abstract

We investigate local contents in $N$-qubit generalized Greenberger-Horne-Zeilinger (GHZ) states. We suggest a decomposition for correlations in the GHZ states into a nonlocal and fully local part, and find a lower and upper bound on the local content. Our lower bound reproduces the previous result for $N=2$ [V. Scarani, Phys. Rev. A 77, 042112 (2008)] and decreases rapidly with $N$.

DOI
10.1103/physreva.82.054102

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