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From: crummer%AEROSPACE@sri-unix.UUCP
Newsgroups: net.physics
Subject: Re: A Cracked Crock
Message-ID: <12532@sri-arpa.UUCP>
Date: Mon, 1-Oct-84 13:30:23 EDT
Article-I.D.: sri-arpa.12532
Posted: Mon Oct  1 13:30:23 1984
Date-Received: Fri, 5-Oct-84 05:36:26 EDT
Lines: 23

From:  Charlie Crummer 

The Aspect (EPR) experiment is similar to the double-slit experiment except
that the scatter diagram that shows the correlation is divided into its two
pieces, one at one analyzer system and the other at the other.  The correlation
information can only be extracted when the two diagrams are brought together
and, of course, the results of the experiment do not indicate that it is
possible to bring the two diagrams together at speed > c.  The at-a-distance
effect of one analyzer setting on the results detected by the other is 
mysterious but does not violate Einstein causality.

It is also mysterious that even so-called "classical" gauge fields cause non-
local interactions, i.e. macroscopic action at locations where the field is 
vanishingly small. (See the Bohm-Aharanov experiment with the electromagnetic
field and Mach's principle.)  These effects are not propagated FTL.

  Perhaps the most important result of the Aspect experiment is that it buries 
once and for all the hope that "hidden variable" theories can be used to 
explain all quantum mechanical phenomena.  These theories must obey Bell's 
inequality which is clearly violated in the experiments.


  --Charlie