Stronger two-observer all-versus-nothing violation of local realism

Abstract

We introduce a two-observer all-versus-nothing proof of Bell's theorem which reduces the number of required quantum predictions from 9 [A. Cabello, Phys. Rev. Lett. 87, 010403 (2001); Z.-B. Chen et al., Phys. Rev. Lett. 90, 160408 (2003)] to 4, provides a greater amount of evidence against local realism, reduces the detection efficiency requirements for a conclusive experimental test of Bell's theorem, and leads to a Bell's inequality which resembles Mermin's inequality for three observers [N. D. Mermin, Phys. Rev. Lett. 65, 1838 (1990)] but requires only two observers.

REVTeX4, 5 pages

References in corpus (7)

• Persistent entanglement in arrays of interacting particles
• Experimental One-Way Quantum Computing
• "All versus nothing" inseparability for two observers
• Bell's theorem without inequalities and without probabilities for two observers
• All-Versus-Nothing Violation of Local Realism for Two Entangled Photons
• Comment on "Bell's Theorem without Inequalities and without Probabilities for Two Observers"
• Reply to Marinatto's comment on "Bell's theorem without inequalities and without probabilities for two observers"

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• One-way quantum computation with two-photon multiqubit cluster states
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• Bipartite all-versus-nothing proofs of Bell's theorem with single-qubit measurements
• One-way quantum computation via manipulation of polarization and momentum qubits in two-photon cluster states
• Experimental Test of Irreducible Four-Qubit Greenberger-Horne-Zeilinger Paradox
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• Modern Theory for the Orbital Moment in a Superconductor
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• On the logical structure of Bell theorems without inequalities
• How Quantum is the Classical World?
• Simultaneous All-versus-Nothing Refutation of Local Realism and Noncontextuality by a Single System