Ben6993 wrote:The Bell experiment deals with whole particles but the spin states of pairs of particles are entangled by QM. Each particle pair has to be treated as a single unit wrt spin state. So, wrt spin, if Alice had a constant angle for the whole experiment, that would correspond to the untreated slit 1 of Susskind's experiment. Bob's magnet would carry out the role corresponding to the treatment at slit 2. Susskind is treating different halves of an electron differently while Bell's experiment is treating different halves of a 'single entity wrt spin state' differently. 4pi periodicity should apply in both cases.
In a Bell experiment on particles in the singlet state, the orientation of one of the magnets would be repeatedly and randomly set to be 0 or 90 degrees; the orientation of the other is repeatedly and randomly set to be 45 or 135 degrees. They are each rotated back and forth through 90 degrees in random fashion (by the toss of a coin, two new coin tosses for each new particle pair).
Please distinguish how one might describe the states of the particles in quantum mechanics, and operations which you do on the lab on macroscopic objects. The word "quantum mechanics" is not part of the description of the experimental protocol. You instruct your lab assistants to switch switches and turn knobs and count clicks.

