-----Original Message-----
From: Robin van Spaandonk
RS: ...and exactly how does one know that the color is indeterminate
if no measurement has been done,
TB: I understand your position. Intuitively, I agree with you with
great glee. It is identical to Einstein, Podolsky and Rosen. However,
the data shows that the Bell Inequalities exist. Here's a good
explanation:
http://www.ncsu.edu/felder-public/kenny/papers/bell.html
RS: No, the pattern goes away because the photons in one path are
stopped by the detector (otherwise the detector wouldn't be
detecting anything).
TB: That is the simple answer; but, it does not jive with current SQM
experiments. In this case, we are speaking of *single* photon
interference patterns. They create interference patterns because of
Feynman's "sum of histories" concept. The interference pattern is a
result of the probabilites that the photon can follow either path with
a certain probability. When the photon path is known, the photon does
not go away. The photon is detected at the convergence point; however,
it is detected as a particle. It is not stopped at the detector.
Bohm offers an interesting explanation by separating the particle from
the probability wave function. But Ockham's razor rules!
Terry
