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michael_nielsen 3. velj
A question for people who know about Bell inequalities: in the 1982 Aspect paper they present them in this form (a version of the CHSH inequality), with an experimental value (& violation) of S = 0.101
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michael_nielsen 3. velj
Odgovor korisniku/ci @michael_nielsen
The more commonly stated form of the CHSH inequality is Q := E(AC)+ E(BC) + E(BD) - E(AD) <= 2, where A, B etc are the observables for the polarization (values +- 1). By my calculation, Q = 2+4S, so the experimental value in Aspect corresponds to Q ~ 2.404.
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michael_nielsen 3. velj
Odgovor korisniku/ci @michael_nielsen
This is well short of the maximal violation (Q = 2 sqrt(2) ~ 2.8). But AFAICT the Aspect experiment uses polarization angles that should give the maximal violation What gives? Have I goofed? Or am I missing something? Is it the cryptic remark about solid angles & efficiencies?
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michael_nielsen 3. velj
Odgovor korisniku/ci @michael_nielsen
I am quite puzzled by this. I half wonder if I've simply messed up in relating Q and S, but I've checked the calculation twice, and I don't see it.
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