On 3/16/2022 2:38 PM, Bruce Kellett wrote:
On Thu, Mar 17, 2022 at 7:01 AM Brent Meeker <meekerbr...@gmail.com>
wrote:
On 3/16/2022 4:11 AM, Bruce Kellett wrote:
If the angles are unknown to each other but are still
deterministically
fixed to some arbitrary values, then all four branches can
form with the
appropriate amplitudes. One can then ask how the values for the
amplitudes get fixed as this looks like a nonlocal process.
However, the
state describes a nonlocal situation created by the entangled
spin pair.
The nonlocal aspects of this state do not exist in Bob's or
Alice's
sectors when they perform their spin measurements.
Of course they do. Otherwise the correct correlations cannot be
formed.The correlations cannot wait until Alice and Bob meet
because in general there is no interaction there that could reset
things. Remember, the results could be exchanged by email, with
no direct interaction at all.
If you're going to assume that all outcomes occur independently at
Alice and Bobs detectors, which seems to be what is required to
say the processes are local, then there must be an interaction
that eliminates or weights the independent wave functions within
the future light cones of Alice and Bobs detectors. And this must
be a kind of interference between quasi-classical worlds in
general, since we can never observe superpositions of classical
worlds. Whatever process produces two orthogonal worlds when
Alice makes a measurement, Zurek's quantum Darwinism for example,
should also work to prevent a superposition of inconsistent EPR
worlds.
To say that something has zero probability is to say that it
doesn't exist. It does not mean that the thing vanishes magically when
you happen to find out that it has zero probability.
Bruce
But compare the dark bands in a Young's slit experiment. There's zero
probability of finding a photon there, but it doesn't mean there was
some photon that failed to exist because it was going to be canceled out
by running into it's mate.
Brent
--
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 view this discussion on the web visit
https://groups.google.com/d/msgid/everything-list/132956c7-5792-82a1-979a-d9ac37e62ee4%40gmail.com.
