New Possibilities for Testing Local Realism in High Energy Physics

Abstract

The three photons from the dominant ortho-positronium decay and two vector mesons from the ${\eta }_c$ exclusive decays are found to be in tripartite and high-dimensional entangled states, respectively. These two classes of entangled states possess the Hardy type nonlocality and allow a priori for quantum mechanics vs local realism test via Bell inequalities. The experimental realizations are shown to be feasible, and a concrete scheme to fulfill the test in experiment via two-vector-meson entangled state is proposed.

published in Phys. Lett. A

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• John Bell and the Nature of the Quantum World
• Real or Not Real that is the question
• Understanding Polarization Correlation of Entangled Vector Meson Pairs
• Particle Collisions & Quantum Entanglement in High-Energy Collisions
• Test of quantum nonlocality via vector meson decays to $K_S{K}_S$
• The Entropic Uncertainty Principle for Decaying Systems and CP violation