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- From: atems@igor.physics.wayne.edu (Dale Atems)
- Subject: Quantum correlations and information transfer
- Message-ID: <1993Jan13.025034.12390@cs.wayne.edu>
- Sender: usenet@cs.wayne.edu (Usenet News)
- Organization: Wayne State University, Detroit, MI
- Date: Wed, 13 Jan 1993 02:50:34 GMT
- Lines: 25
-
- Paul, there are two issues here as I see it:
-
- 1). Does one obtain the correct quantum correlations by using the singlet
- wave function before either particle is detected? For the spin-half case
- I get < (S1.a) (S2.b) > = -(hbar^2) a.b / 4 for arbitary unit vectors
- a and b, particles 1 and 2 in the (pre-detection) singlet state. Is this
- the correct answer or no?
-
- 2). Are the predictions of QM inconsistent with the assertion that the
- setting of the near polarizer *never* influences the outcome of the
- distant measurement? If this is what Eberhard claims to prove then I
- will read his derivation as soon as I can find the time.
-
- I suspect, rather, that the most can say for certain is that if QM is
- correct, the polarization states of the photons are incompletely
- determined until the measurements are made (a statement with which
- Bohr would have agreed decades ago), and that the correlations
- predicted by QM between distant measurements would *otherwise*
- imply such an influence.
-
- ------
- Dale Atems
- Wayne State University, Detroit, MI
- Department of Physics and Astronomy
- atems@igor.physics.wayne.edu
-