Bell's inequality tests: from photons to B-mesons

Abstract

We analyse the recent claim that a violation of a Bell's inequality has been observed in the $B$--meson system [A. Go, {\em Journal of Modern Optics} {\bf 51} (2004) 991]. The results of this experiment are a convincing proof of quantum entanglement in $B$--meson pairs similar to that shown by polarization entangled photon pairs. However, we conclude that the tested inequality is not a genuine Bell's inequality and thus cannot discriminate between quantum mechanics and local realistic approaches.

5 pages

References in corpus (5)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Bell-inequalities for Entangled Neutral Kaons
• Observation of Bell Inequality violation in B mesons
• EPR Test with Photons and Kaons: Analogies
• Violation of a Bell inequality in particle physics experimentally verified?

Cited by in corpus (19)

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• High Energy Quantum Teleportation Using Neutral Koans
• Entangled baryons: violation of Inequalities based on local realism assuming dependence of decays on hidden variables
• Generation of bipartite spin entanglement via spin-independent scattering
• Heisenberg's Uncertainty Relation and Bell Inequalities in High Energy Physics
• An open quantum system approach to EPR correlations in K0-K0 system
• CP Measurement in Quantum Teleportation of Neutral Mesons
• Testing the EPR Locality using B-Mesons
• Neutral kaons as an open quantum system in a second quantization approach
• T violation and the Unidirectionality of Time: further details of the interference
• Many unstable particles from an open quantum systems perspective
• Quantum algebra in the mixed light pseudoscalar meson states
• Standard Model of Particle Physics Violating Crypto-Nonlocal Realism
• Understanding Polarization Correlation of Entangled Vector Meson Pairs
• Colliders are not Testing Locality via Bell's Inequality nor Providing an Unconditional Proof of Entanglement
• The Entropic Uncertainty Principle for Decaying Systems and CP violation