Thanks Scerir, but yet again, this paper get the same conclusion as mine (and most people here). With the MWI, non-locality does not imply action-at-a distance. (d'Espagnat would call it non-separability). What I look for would be a paper which would show that in the MWI there are action-at-a-distance, like Bruce and John C claim. I might comment later, as I am late in my scheduling, but will just notice that Gisin's paper (mentionned by Brent) use the non-compatibilist theory of free-will, which makes no-sense to a mechanist. I think Brent concluded similarly. Bruno
If A and B are two wings of a typical Bell apparatus, i the observable to be measured in A and x its possible value, j is the observable to be measured in B and y its possible value, and if Lambda are hidden variables, we could write Locality Condition p_A,Lambda (x|i,j) = p_A,Lambda (x|i) p_B,Lambda (y|i,j) = p_B,Lambda (y|j) Separability Condition p_A,Lambda (x|i,j,y) = p_A,Lambda (x|i,j) p_B,Lambda (y|i,j,x) = P_B,Lambda (y|i,j) There is (was) some agreement that a (phantomatic) deterministic theory (i.e. one in which the range of any probability distribution of outcomes is the set: 0 or 1) reproducing all the predictions of QM, can not violate the Separability Condition, (the specification of Lambda, i, j, in principle determines completely the outcomes x, y, then any additional conditioning on x or y is superfluous, having x and y just one value allowed, so they cannot affect the probability, which - in a deterministic theory - can just take the values 0 or 1) and must violate the Locality Condition. Following the above reasoning MWI (if it is a truly deterministic theory) should violate the locality condition. -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
