On 11/14/2018 11:23 PM, Philip Thrift wrote:
On Wednesday, November 14, 2018 at 6:55:36 PM UTC-6,
agrays...@gmail.com 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?
Brent
* *Hilbert Spaces from Path Integrals*
https://arxiv.org/abs/1002.0589
- pt
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