Entanglement Revisited
The files here are about the CHSH inequality and contain my research notes and considerations. In particular the classically anticipated individual expectation values <ZZ>, <XX>, <XZ>, and <ZX>. How are they related to the CHSH inequality from QM point of view. Jupiter notebook for running calculations related to the CHSH inequality on a quantum computer, and comparing the analytic expressions, the simulations, and the IBM Q-experience runs.
Now when I think about the Classical-Quantum CHSH/Bell paradox it is hard to me to see the real problem. If <ZZ>, <XX>, <XZ>, and <ZX> are viewed as measurements about an object/system then the CHSH correlations are very well quantified by the angle theta... This is making me wonder how is CHSH(theta) different from measuring the property of a geometric object? Say a sphere, or cube, or anything else where there is a correlation between size, area, and volume?
I would admit that there is a problem if one can force the measurement outcomes to be only +1 or only -1, but as far as I have seen, the A or B measurement is free to produce +1 or -1 and only after postprocessing one can see the corelations. It seems that time playes no role at all beyond making sure that one is looking at the same object/system.