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- Newsgroups: sci.physics
- Path: sparky!uunet!stanford.edu!ames!riacs!danforth
- From: danforth@riacs.edu (Douglas G. Danforth)
- Subject: Re: Uncertainty Principle
- Message-ID: <1992Sep4.172433.15504@riacs.edu>
- Sender: news@riacs.edu
- Organization: RIACS, NASA Ames Research Center
- References: <1992Sep4.170847.235@prim> <5273@tuegate.tue.nl>
- Date: Fri, 4 Sep 92 17:24:33 GMT
- Lines: 24
-
- In <5273@tuegate.tue.nl> johan@blade.stack.urc.tue.nl (Johan Wevers) writes:
-
- >prim!dave@germany.eu.net (Dave Griffiths) writes:
- >>
-
- >>Does it make any sense to talk about a particle having an unknowable, but
- >>precise, position and momentum (which would be the case if the problem was
- >>simply one of measurement)?
-
- >Yes, but it is trickey. This is exactly the point the EPR experiment was
- >pointing on. Aspect's experiments prooved that this interpretation
- >should be handled with care, but some non-causal or non-local hidden-
- >variable theories exist which reproduce QM.
-
- >>Dave Griffiths
-
- >* J.C.A. Wevers
-
- Aspect's detectors were inefficient (less than 1%). A local realistic
- theory can be constructed that gives the QM correlations for detector
- efficiencies up to 81.8%. The death of local theories is still premature.
-
- -- D. G. Danforth
-
-