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- Newsgroups: sci.physics
- Path: sparky!uunet!srvr1.engin.umich.edu!destroyer!wsu-cs!igor.physics.wayne.edu!atems
- From: atems@igor.physics.wayne.edu (Dale Atems)
- Subject: Re: hidden variables
- Message-ID: <1993Jan22.141017.11147@cs.wayne.edu>
- Sender: usenet@cs.wayne.edu (Usenet News)
- Organization: Wayne State University, Detroit, MI
- References: <505@mtnmath.UUCP> <1993Jan21.000329.21085@cs.wayne.edu> <507@mtnmath.UUCP>
- Date: Fri, 22 Jan 1993 14:10:17 GMT
- Lines: 35
-
- In article <507@mtnmath.UUCP> paul@mtnmath.UUCP (Paul Budnik) writes:
- > [...] All the laws of
- > physics except the collapse postulate are local. You cannot get a
- > violation of Bell's inequality from these laws. Thus you need collapse to
- > prove that Bell's inequality is violated and to compute the delay
- > involved.
- >
- > It is the premise of this argument, `that no law of physics except the
- > collapse postulate can violate Bell's inequality' that you keep objecting
- > to. [...]
-
- Actually to get at my basic objection we have to step back a bit. The
- premise you quote, if I've understood you, is the conclusion of an
- argument whose premise is "information must be transferred
- instantaneously at a distance when Bell's inequality is violated".
- As I've said before, I consider this a completely reasonable thing
- to say. However, I don't think one can draw any conclusions about
- quantum theory from any argument based on this premise. As a
- physical theory QM is not required to account for a "process"
- which cannot be observed. The correlations which result in the
- violation of Bell's inequality are the only thing it needs to
- explain, and it regards those as a consequence of the twinned
- photons' common origin.
-
- Also I don't think it's correct to call collapse a law of physics.
- If one takes probability as a primary concept one needs to describe
- what happens when the observer's state of knowledge changes. If
- this occurs discontinuously, then the description naturally reflects
- that discontinuity.
-
- ------
- Dale Atems
- Wayne State University, Detroit, MI
- Department of Physics and Astronomy
- atems@igor.physics.wayne.edu
-