Observation of Bell Inequality violation in B mesons

Details Observation of Bell Inequality violation in B mesons Observation of Bell Inequality violation in B mesons

2003-10-31

arxiv.org/abs/quant-ph/0310192v1

Physics

Quantum Physics

Conference Proceeding for Garda Lake Workshop 2003 "Mysteries, Puzzles and Paradoxes in Quantum Mechanics"

Scientific paper

A pair of $B^0\bar B^0$ mesons from $\Upsilon(4S)$ decay exhibit EPR type non-local particle-antiparticle (flavor) correlation. It is possible to write down Bell Inequality (in the CHSH form: $S\le2$) to test the non-locality assumption of EPR. Using semileptonic $B^0$ decays of $\Upsilon(4S)$ at Belle experiment, a clear violation of Bell Inequality in particle-antiparticle correlation is observed: S=2.725+-0.167(stat)+-0.092(syst)

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