Jason, imagine a universe, by physical laws, where its easy to interact with other clones of our own universe, and version of earth, but it's far more difficult to travel without titanic amounts of energy. So Earth 1 x 119^42nd, (ourselves) trades peacefully, with Earth 1 x 20^905, but is in a constant state of war, with Earth 1 x 7231 (The Greater Mongolian Empire). In some universe, High Everett the 3rd, in a medically, advanced, Earth, is laughing his ass off at us :-(
-----Original Message----- From: Jason Resch <jasonre...@gmail.com> To: Everything List <everything-list@googlegroups.com> Sent: Fri, Nov 24, 2017 8:48 pm Subject: Re: Consistency of Postulates of QM On Fri, Nov 24, 2017 at 1:15 PM, Bruno Marchal <marc...@ulb.ac.be> wrote: I was just explaining that a measurement is any memorable interaction, which is simplest to illustrate with a tensor product of Alice (|A>)and a simple superposition. In your notation: |A> (|UP> + |DN>) = |A> |UP> + |A> |DN> . In the case of the singlet state, it is more subtle, as |UP>|DN> - |DN>|UP> describes a many-worlds with Alice having a spin in any direction, and Bob, too but the opposite relatively to each others (the notation is misleading). We must keep in mind the rotational invariance of the spin. So we the Alice Bob situation is more intricate and tedious to describe. Sometimes I referred to the simple account of this in the Everett FAQ by Michael Clive Price, but it seems not available since some times. We have copied the relevant details in previous discussions though, so you might try to find it in the archives with the key word "Michael", or something. I have unfortunately not the time "here and now". Later perhaps. With Everett, it is important to reason independently of the bases in between the measurements. I guess you see that violation of the BI leads to "action at a distance" if we assume a collapse, or a mono-world theory. I don't see Bell' argument applying in the MW context, though. Bruno Bruno, Is this the Many Worlds FAQ you were referring to? http://www.anthropic-principle.com/preprints/manyworlds.html I think the parts relevant to EPR, Bell Inequality and Locality (for those interested) are Q12 and Q32. Jason -- 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 everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout. -- 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 everything-list+unsubscr...@googlegroups.com. To post to this group, send email to everything-list@googlegroups.com. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
