Tuesday, February 21, 2012

1202.4206 (Xun Chen et al.)

Understanding Polarization Correlation of Entangled Vector Meson Pairs    [PDF]

Xun Chen, Siguang Wang, Yajun Mao
Quantum mechanics (QM) disfavours local realism because it violates Bell's
theorem, a theorem that must be valid for all local hidden variable theories
(LHVT). Experimental tests of local realism in high energy particle physics
have been proposed and carried out, but no decisive conclusion has been drawn.
We find that the correlated distribution between polarization vectors of two
entangled mesons predicted by QM can be reproduced in a natural way, by
interpreting the two-body decay of vector mesons as a measurement to their
polarization vector. The interpretation provides a method to simulate the
correlated decay of entangled vector meson pairs, and a potential experimental
approach for the discrimination between QM and LHVT in particle physics.
Related data analysis can be carried out at currently running experiments and
could give deeper insight for the understanding of local realism.
View original: http://arxiv.org/abs/1202.4206

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