Novel Bell's inequalities for entangled K0 anti-K0 pairs

Abstract

We derive new Bell's inequalities for entangled K0 anti-K0 pairs. This requires 1) mutually exclusive setups allowing either K0 vs anti-K0 or KS vs KL detection and 2) the use of kaon regenerators. The inequalities turn out to be significantly violated by Quantum Mechanics, resulting in interesting tests of Local Realism at phi-factories and p anti-p machines.

Comments: 4 RevTeX pages; corrected typos; short comments added; accepted by Phys. Rev. Lett