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

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arxiv quant-ph/0410122 v1 pith:YPX326ZT submitted 2004-10-15 quant-ph hep-phphysics.optics

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

classification quant-ph hep-phphysics.optics
keywords inequalitybellmesonpairsquantumanalyseapproachesb-mesons
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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.

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