Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!watmath!clyde!burl!ulysses!mhuxj!ihnp4!zehntel!hplabs!sri-unix!crummer@AEROSPACE 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 CrummerThe 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