Quantum analogues of Hardy's nonlocality paradox

Abstract

Hardy's nonlocality is a "nonlocality proof without inequalities": it exemplifies that quantum correlations can be qualitatively stronger than classical correlations. This paper introduces variants of Hardy's nonlocality in the CHSH scenario which are realized by the PR-box, but not by quantum correlations. Hence this new kind of Hardy-type nonlocality is a proof without inequalities showing that superquantum correlations can be qualitatively stronger than quantum correlations.

minor fixes

Cited by in corpus (8)

• Bell nonlocality
• Relational Hidden Variables and Non-Locality
• Geometry of the quantum set on no-signaling faces
• Hardy's paradox as a demonstration of quantum irrealism
• Consequences and applications of the completeness of Hardy's nonlocality
• Quantum correlations on the no-signaling boundary: self-testing and more
• All-versus-nothing violation of local realism from the Hardy paradox under no-signaling
• Chained Clauser-Horne-Shimony-Holt inequality for Hardy's ladder test of nonlocality