Archive | 2021
Event-Based and LHV Simulation of an EPR-B Experiment: EPR-Simple and EPR-Clocked
Abstract
In this note, I analyse the code and the data generated by M. Fodje s simulation programs (written in Python, published in 2013 on Github) epr-simple and epr-clocked using appropriate modified Bell-CHSH type inequalities: the Larsson detection-loophole adjusted CHSH, and the Larsson-Gill coincidence-loophole adjusted CHSH. The experimental efficiencies turn out to be approximately eta = 81% and gamma = 55% respectively, and the observed value of CHSH is (of course) well within the adjusted bounds. Fodjes detection loophole model turns out to be very, very close to Pearle s famous 1970 model, so the efficiency is very close to optimal, but the model shares the same defect as Pearle s - the joint detection rates exhibit signalling. His coincidence-loophole model is actually a clever modification of his detection-loophole model, and the trick he uses is actually rather simple. But it does not lead to the optimal efficiency. Note: this is version 5 of a paper originally written in 2014. I recently submitted version 4 to the journal Entropy where it got rejected, rightly so. It has the status of lab notes , a documentation of one or two experiments whose results are interesting but not worth publishing on their own. I will extract the few jewels in this work later and use them in a more ambitious paper about the results of the bigger research project of which these experiments were a small part.