Heinera wrote:If someone restricts me to a LHV model (source can't know the settings, one detector can't now the other setting, etc.), the best I can do is 2. QM is somewhere in between..
Yet we have seen in this thread, that E(a,b) in the CHSH "knows" about E(a,b') and E(a', b), and E(a,b') knows about E(a',b') and E(a,b).
Please read those articles, you might learn something from it. As Rosenberg states
Rosenberg wrote:The celebrated Bell inequalities cannot be violated by quantum systems. This paper presents in more
detail the surprisingly elementary, even if rather subtle related basic argument.
And Adenier says the same:
Adenier wrote:It is demonstrated that once this meaning is determined, no discrepancy appears between local realistic theories and quantum mechanics: the discrepancy in Bell’s Theorem is due only to a meaningless comparison between a local realistic inequality written within the strongly objective interpretation (thus relevant to a single set of particle pairs) and a quantum mechanical prediction derived from a weakly objective interpretation (thus relevant to several different sets of particle pairs).
Sica says the same thing:
http://arxiv.org/pdf/1202.0841v3Sica wrote:The Greenberger, Horne, Zeilinger (GHZ) theorem is critically important to consideration of the possibility of hidden variables in quantum mechanics. Since it depends on predictions of single sets of measurements on three particles, it eliminates the sampling loophole encountered by the Bell theorem which requires a large number of observations to obtain a small number of useful joint measurements. In evading this problem, the GHZ theorem is believed to have confirmed Bell's historic conclusion that local hidden variables are inconsistent with the results of quantum mechanics. The GHZ theorem depends on predicting the results of sets of measurements of which only one may be performed, i.e., counterfactuals. In the present paper, the non-commutative aspects of these unperformed measurement sequences are critically examined. Three classical examples and two variations on the GHZ construction are analyzed to demonstrate that combined counter factual results of non-commuting operations are in general logically inconsistent with performable measurement sequences that take non-commutation into account. As a consequence, negative conclusions regarding local hidden variables do not follow from the GHZ and Bell theorems as historically reasoned.