Testing the EPR Locality using B-Mesons

Details Testing the EPR Locality using B-Mesons Testing the EPR Locality using B-Mesons

2008-05-23

arxiv.org/abs/0805.3632v2

Phys.Lett.A373:39-44,2008

Physics

Quantum Physics

14 pages, PlainTeX, minor revision

Scientific paper

10.1016/j.physleta.2008.10.013

We study the possibility of testing local realistic theory (LRT), envisioned implicitly by Einstein, Podolsky and Rosen in 1935, based on the Bell inequality for the correlations in the decay modes of entangled K or B-mesons. It is shown that such a test is possible for a restricted class of LRT, despite the passive nature of decay events and/or the non-unitary treatment of the correlations which invalidate the test for general LRT. Unfortunately, the present setup of the KEKB (Belle) experiment, where the coherence of entangled B-mesons has been confirmed recently, does not admit such a test due to the inability of determining the decay times of the entangled pairs separately. The indeterminacy also poses a problem for ensuring the locality of the test, indicating that improvement to resolve the indeterminacy is crucial for the test of LRT.

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