I don't think anyone mentioned this article, and since its fundamental to QM,
as well as to much of
the hypothesizing going on around here, I think its worthwhile to take time to
read it:
Which-way detector unlocks some mystery of the double-slit experiment
http://www.physorg.com/news/2011-01-which-way-detector-mystery-double-slit.html
"With a filter over the right slit, electrons are more likely to undergo
inelastic scattering and
act like a spherical wave. Electrons passing through an uncovered slit are more
likely to undergo
elastic scattering and act like a cylindrical wave."
One of the scientists involved with this series of experiments is at the U of
Bologna...
-Mark
