On Mon, Nov 18, 2024 at 1:03 AM Bruce Kellett <[email protected]> wrote:
*> The violation of Bell inequalities implies non-locality,* > *No, that's an oversimplification. The violation of Bell's Inequalitie implies that things are either non-local and realistic, or local and unrealistic. Many Worlds is local and unrealistic. * > *> and the epistemic interpretation of the wave function is perfectly > compatible with non-locality.* > *True, there could still be hidden variables, but they would be non-local hidden variables. * *> Unfortunately, Everettian QM, or MWI, cannot even account for the > correlations, much less the violations of the Bell inequalities. * > *The spin of 2 electrons has been quantum mechanically entangled. One electron is given to Alice and the other to Bob. Alice and her electron stay on earth but Bob takes his electron and gets in a near light speed spaceship and after 4 years is on Alpha Centauri. And after 4 years Alice picks a direction at random, calls that "up" and measures the spin of her electron in that direction with a Stern Gerlach magnet.* *At that instant the universe splits into two, in one Alice has the spin up electron and Bob has spin down, and in the other universe Alice has spin down and Bob has spin up. So in both universes, because she knows the laws of quantum mechanics, Alice not only knows what her spin is she also knows what Bob's spin must be, but if she wanted to tell Bob what his spin is it would take another 4 years for the message to reach him. If Bob picked the same direction for "up" as Alice did there would be a perfect anti-correlation, if he picked some other direction the degree of correlation would depend on how different his direction was from Alice's. * *John K Clark See what's on my new list at Extropolis <https://groups.google.com/g/extropolis>* abq -- 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 view this discussion visit https://groups.google.com/d/msgid/everything-list/CAJPayv0d%3Dj6sbXN6OZOVK1dzOvurWF8sACuq-7VEsYHVmx7ANQ%40mail.gmail.com.
