[ExI] QT and SR
John K Clark
jonkc at bellsouth.net
Sat Sep 6 16:00:16 UTC 2008
"The Avantguardian" <avantguardian2020 at yahoo.com>
> Suppose you sent two space probes into diametrically
> opposed circumpolar orbits at 1 AU around a magnetar.
For this sort of thought experiment the massive magnetic
field around a neutron star is not very good, from day one
everybody will agree on the poles, best to stick to entangled
photons or spinning electrons.
> Wouldn't the fact that one probe measures that it is at
> the north pole of the magnetic field, instantaneously tell
> it that the other probe was at the south pole, 16 minutes
> before the signal from the other probe arrived?
One probe would have no way of knowing what the other
probe was doing unless they communicated, and that can
only be done at light speed or less.
> Could the correlation be said to move or travel at any
> speed at all?
Experiments have confirmed beyond any doubt that
correlations can move much faster than light, probably at
infinite speed, but unfortunately you need more than that
to transmit information. To communicate you not only need to
make a change at a distance you also need a standard to
measure that change against; Quantum Mechanics can
provide the one but not the other.
John K Clark
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