Richard Healey

Beyond Bell?

In a recent archive post ([1]) Shan Gao has argued that quantum theory is incompatible with relativity. He calls this a new proof beyond Bell’s theorem, arguing elsewhere ([2]) that it closes the superdeterminism loophole in Bell’s theorem. Such strong claims must be backed up by irrefutable arguments. My aim in this post to the workshop “Beyond Bell’s theorem” is to refute Gao’s “proof”… Read more →

Local Causality, Probability and Explanation

Richard A. Healey Submitted to “Quantum Nonlocality and Reality – 50 Years of Bell’s theorem” In papers published in the 25 years following his famous 1964 proof John Bell refined and reformulated his views on locality and causality. Although his formulations of local causality were in terms of probability, he had little to say about that notion. But assumptions about probability are implicit in… Read more →