On 4/21/2018 8:39 PM, smitra wrote:
On 22-04-2018 02:05, Brent Meeker wrote:
On 4/21/2018 4:45 PM, smitra wrote:
Yes, collapse does imply non-locality, but note that in the MWI
there is no collapse. There is no real "splitting of Worlds" in the
MWI either, it's only an effective splitting that can be interpreted
as an effective collapse as observed in the various effective worlds.
And that observation is predicted by events spacelike separated from it.
Brent
And that ability for Alice to predict what Bob will find, poses a
problem for single world collapse theories. Only there does new
information appear after a measurement and that then happens in a
non-local way when making certain measurements on entangled pairs of
particles.
There are only four cases without collapse and in every case Alice can
predict Bob's result. The very fact, which you have brought up, that
any hidden variable theory that explains the results must be non-local
(like Bohmian QM) shows that effect is non-local.
Brent
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