On 4/19/2018 5:29 PM, smitra wrote:
One can a priori rule out any non-local effects using the fact that the dynamics as described by the Schrödinger equation is local. So, in any theory where there is no collapse and everything follows from only the Schrödinger equation, there cannot be non-local effects
The wave-function exists in configuration space so a point in it already refers to multiple points in 3space.
Brent
other than due to common cause effects. Then suppose that in an example where things are simplified to allow for Alice and Bob thought experiments to be discussed without having to rigorously show how Alice, Bob and the experimental apparatus used are to be extracted from the wavefunction one does see non-local effects, then it follows that these non-local effects are artifacts of these simplifications. Now, in standard quantum mechanics one does routinely make such simplifying assumptions, this allows for QM to be useful as a practical theory, but we then also know that strictly speaking, it's not how Nature really works.
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