Bell inequalities with neutral kaon pairs.

por Albert Bramon (Universitat Autonoma de Barcelona)

viernes 28 may. 2004 12:00 → 13:00 Europe/Madrid

Sala Seminarios IFIC (Edf. Institutos de Investigación)

Neutral kaon pairs coming from phi(1020) resonance decays or proton-antiproton annihilations at rest are shown to be extremely useful to discuss basic aspects of Quantum Mechanics (QM), such as the Einstein-Podolsky-Rosen phenomenon and the related Bell inequalities. The latter are essential to discriminate between QM and Local Realism (LR), as in the well known experiments by Aspect et al.. But, up to now, LR has not been definitely excluded by any conclusive experiment, i.e. an experiment being free from the so called detection and locality loopholes. The main purpose of the talk is to show how neutral kaons could in principle perform loophole-free Bell-type tests. General references on Bell inequalities are: J.F.Clauser and A.Shimony, Rep. Prog. Phys. 41 (1978) 1881; L. Hardy, Phys. Rev. Lett. 71 (1993) 1665. References on Bell inequalities for kaons are: A. Bramon and G.Garbarino, Phys. Rev. Lett. 88 (2002) 040403; A. Bramon and G.Garbarino, Phys. Rev. Lett. 89 (2002)