On Thursday, November 15, 2018 at 7:37:58 PM UTC, Brent wrote: > > > > On 11/14/2018 11:23 PM, Philip Thrift wrote: > > > > On Wednesday, November 14, 2018 at 6:55:36 PM UTC-6, [email protected] > wrote: >> >> >> >> On Wednesday, November 14, 2018 at 10:20:09 PM UTC, Pierz wrote: >>> >>> Obviously you can't measure the particle simultaneously in the up and >>> down state. Nobody believes that. Nobody is arguing it. >> >> >> *Haven't you ever heard of physicists, some prominent who write books >> about QM for the lay public, who assert that one of the mysteries of QM is >> that a particle can be in two places at the same time, or cats can be alive >> and dead simultaneously, or spin can be Up and Dn simultaneously? If you >> haven't, you're not paying attention. AG* >> >> >>> > *"a particle can be in two places at the same time"* > > > A path-integral realist (one who is "starting from a framework in which > *histories* are fundamental")* might formulate it this way: > > "a particle can have multiple histories — only one of which survives > measurement" > > > Don't you need multiple histories to account for interference effects? >
*For the simple case of two histories, presumably of particles, how does Feynman introduce interference? What's the conceptual framework for interference among or between histories? TIA, AG * > > Brent > > > > * *Hilbert Spaces from Path Integrals* > https://arxiv.org/abs/1002.0589 > > - pt > -- > 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] <javascript:>. > To post to this group, send email to [email protected] > <javascript:>. > 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 [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.
