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arXiv · 0806.2769

Generalized Ardehali-Bell inequalities for graph states

Otfried Gühne·Adan Cabello
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Abstract

We derive Bell inequalities for graph states by generalizing the approach proposed by Ardehali [Phys. Rev. A 46, 5375 (1992)] for Greenberger-Horne-Zeilinger (GHZ) states. Using this method, we demonstrate that Bell inequalities with nonstabilizer observables are often superior to the optimal GHZ-Mermin-type (or stabilizer-type) Bell inequalities.

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Otfried Gühne, Adan Cabello. 2008-06-17. Generalized Ardehali-Bell inequalities for graph states. https://doi.org/10.1103/physreva.77.032108

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