NetNews Usenet Archive 1992 #30/NN_1992_30.iso/spool/sci/physics/21120

Internet Message Format | 1992-12-14 | 1.6 KB

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From: [e-mail] (Jonathan Scott)
Message-ID: <[e-mail]>
Date: Sun, 13 Dec 92 15:48:22 GMT
Newsgroups: sci.physics
Subject: Can you find any evidence against this theory
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My question is:

Have real experiments shown any evidence AGAINST a theory which gives
exactly a HALF of the QM correlation for the two-photon experiment?
(This question arises because a proportional decrease in correlation is
difficult to distinguish from background "false coincidence" noise).

The most obvious deterministic model for the two-photon experiment (as I
mentioned a few days ago in the referenced append) predicts exactly half
the QM correlation for photons with random polarization, or the full QM
correlation if either of the detectors is guaranteed to be aligned with
the photon polarization (which occurs for example when observing the
circular components of pure L or R circularly polarized photons which
have not been deflected, as I believe occurred in 3/4 of the path
configurations in the dynamic switch Aspect experiment).

I've tried looking at Phys Rev articles in my local university library
several times but I don't understand enough of the jargon to understand
how Aspect & co. got from the raw figures to the final conclusions, but
terms like "false coincidence" make me wonder how the background noise
is filtered out, and whether the results support equally well any theory
which gives a smaller but proportional correlation.

Jonathan Scott
[e-mail]  or  [e-mail]