On 4/26/2018 5:55 PM, Bruce Kellett wrote:
From: *Brent Meeker* <[email protected] <mailto:[email protected]>>
On 4/26/2018 3:41 PM, Bruce Kellett wrote:
My point was that if there is a record that a measurement was made,
something irreversible has been extracted from the experiment. If the
QC is "conscious", then it has to interact with something to make
this irreversible record, so its quantum state is irreversibly
changed. But you are probably right: if there is no decoherence, then
there is no consciousness, since consciousness involves irreversible
memory.
There are experiments already performed in which the welcher weg is
available but is erased, even spacelike relative to detection
I know. But no information was extracted from the welcher weg photons
before they were erased. I.e., no consciousness "recorded" which way and
then forgot the result. I think the act of recording the result, by a
consciousness or anything else, is inherently irreversible. If no record
is made, then erasure is perfectly possible. Just knowing that there
were welcher weg photons that have been erased is not quite the same thing.
Bruce
https://arxiv.org/pdf/1206.4348.pdf <https://arxiv.org/pdf/1206.4348.pdf>
(I wonder if the French appreciated the labeling of their apparatus
BS-in and BS-out?)
Brent
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