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Article View: sci.philosophy.tech
Article #1029

Re: Aspect experiment

#1029
From: erhoogerbeet
Date: Wed, 27 May 1987 18:38
24 lines
1875 bytes
In article <766@klipper.cs.vu.nl> biep@cs.vu.nl (J. A. "Biep" Durieux) writes:
[some deleted]
>in QM) *observe* that the particle spins left (say). At this very same
>moment, at some far distance, the wave-function for the other half-wit
>collapses into the description of a right-spinning particle. So the
>information that you observed your particle must have travelled in
>zero time to the other half-wit. FTL information transfer. <Applause>

I don't understand. If one observer finds the spin, and the spin of the
other particle is automatically known, how is the second observer going
to know that he should look at the half-wit number two at the correct time?

Would they not need to look *simultaneously* at the particle to find out?
Which defeats a purpose somewhere, I think. Not only that, but can the spin
be controlled? If not, how can you transfer information?

Just thought I'd ask.


------ ---------               ------------------------------------------
erhoogerbeet@watmath.uucp    "`The Guide says there is an art to flying,'   
ehoogerbeets@wateuler.uucp     said Ford,`or at least a knack. The knack lies
Edwin (Deepthot)               in learning how to throw yourself at the ground
Hoogerbeets                    and miss.' He smiled weakly." 
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!water!watmath!erhoogerbeet
References: <1275@cci632.UUCP> <766@klipper.cs.vu.nl>

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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: arc1-ca.pugleaf.net!utzoo!utgpu!water!watmath!erhoogerbeet
From: erhoogerbeet@watmath.UUCP
Newsgroups: sci.philosophy.tech,sci.physics
Subject: Re: Aspect experiment
Message-ID: <13317@watmath.UUCP>
Date: Wed, 27-May-87 14:38:29 EDT
Article-I.D.: watmath.13317
Posted: Wed May 27 14:38:29 1987
Date-Received: Thu, 28-May-87 05:37:52 EDT
References: <1275@cci632.UUCP> <766@klipper.cs.vu.nl>
Reply-To: erhoogerbeet@watmath.UUCP (Edwin (Deepthot))
Organization: U. of Waterloo, Ontario
Lines: 24
Keywords: aspect light faster