On 10/16/2019 2:05 PM, Philip Thrift wrote:
On Wednesday, October 16, 2019 at 3:49:12 PM UTC-5, Brent wrote:
On 10/16/2019 8:22 AM, John Clark wrote:
On Tue, Oct 15, 2019 at 8:00 PM Bruce Kellett <[email protected]
<javascript:>> wrote:
> I/n the delayed choice experiment, the decision whether or
not to quantum erase the "which way" information can be made
long after the original photons hit the screen and make their
marks there./
No. In the delayed choice experiment the decision on if to erase
the information about which slit the photon went through can be
made after the photon passes through the slit, even billions of
years after, but it must be made while the photon still exists
and is inflight not after it hits the screen.
I thought you read Carroll's book. His example shows in what
sense you can erase the information after the photon has hit the
screen.
Brent
This ("you can erase the information after the photon has hit the
screen") can be shown to be possible in Many Worlds theory?
What page of the book? (I'll get a copy and check it out.)
He's posted it on his blog https://www.preposterousuniverse.com/blog/
almost word-for-word.
Brent
@philipthrift
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