Preliminary analysis of a recent experiment by F. A. Bovino

Abstract

An analysis is made of the results of a recent polarization correlation experiment by Bovino (unpublished) where about 60,000 data have been obtained. I assume that the state of the photon pairs produced in the source (a non-linear crystal) are in a (slightly)non-maximally entangled state and the most relevant non-idealities of the set-up are taken into account. A comparison is made between the predictions of quantum mechanics and a simple family of local hidden varaibles models with the result that the former is violated by more than 4 standard deviations whislt the data are compatible with the family of local models.