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arXiv · 0901.1669

Complete proof of Gisin's theorem for three qubits

Sujit K. Choudhary·Sibasish Ghosh·Guruprasad Kar·Ramij Rahaman
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Abstract

Gisin's theorem assures that for any pure bipartite entangled state, there is violation of Bell-CHSH inequality revealing its contradiction with local realistic model. Whether, similar result holds for three-qubit pure entangled states, remained unresolved. We show analytically that all three-qubit pure entangled states violate a Bell-type inequality, derived on the basis of local realism, by exploiting the Hardy's non-locality argument.

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Sujit K. Choudhary, Sibasish Ghosh, Guruprasad Kar, Ramij Rahaman. 2009-01-15. Complete proof of Gisin's theorem for three qubits. https://doi.org/10.1103/physreva.81.042107

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