Bell's inequality tests: from photons to B-mesons |
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| Authors: | A. Bramon R. Escribano G. Garbarino |
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| Affiliation: | 1. Grup de Física Teòrica , Universitat Autònoma de Barcelona , E-08193 Bellaterra, Barcelona, Spain;2. Grup de Física Teòrica , Universitat Autònoma de Barcelona , E-08193 Bellaterra, Barcelona, Spain;3. IFAE , Universitat Autònoma de Barcelona , E-08193 Bellaterra, Barcelona, Spain;4. Dipartimento di Fisica Teorica , Università di Torino and INFN , Sezione di Torino, I-10125 Torino, Italy |
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| Abstract: | We analyse the recent claim that a violation of a Bell's inequality has been observed in the B-meson system [A. Go, J. Mod. Opt. 51 991 (2004)]. 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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