Non-locality
Non-locality has been a main issue between Relativity and Quantum since almost a century, even if Bohr has been considered all this time as the winner of his debate with Einstein.
Von Neumann was the first not only to formalize quantic theory, but also to give a mathematical justification to Bohr's conviction that his (Copenhagen) interpretation of the empirical results of quantum physics was the only correct one.
Bohm valiantly attempted to revitalize an old de Brolie theory and base his o
Here is the case I will be analyzing, as described by Maudlin p.12
"When calcium vapor is exposed to lasers tuned to a certain frequency it
fluoresces. As excited electrons in the atoms cascade down to their ground
state they give off light. In particular, each atom emits a pair of photons
which travel off in opposite directions. The polarization of the photons individually
shows no preferred direction: for any randomly chosen direction θ
the photons will pass a polarizer oriented