We give a simple proof of Bell's inequality in quantum mechanics which, in conjunction with experiments, demonstrates that the local hidden variables assumption is false. The proof sheds light on relationships between the notion of causal interaction and interference between particles.
Statistical Methodology | Statistical Theory
Robins, James M.; VanderWeele, Tyler J.; and Gill, Richard D., "A proof of Bell's inequality in quantum mechanics using causal interactions" (September 2011). COBRA Preprint Series. Working Paper 83.