## Odd QM result

From: "andrew cooke" <andrew@...>

Date: Fri, 30 Jul 2004 12:00:04 -0400 (CLT)

This post on mefi is interesting (the rest of the page contains related
links) - http://www.metafilter.com/mefi/34631#710272 - what's interesting
about the experiment isn't that light is being observed acting like a wave
in transit and as a particle when it hits the detector - that happens all
the time, and isn't surprising at all. What's surprising is that, if you
can "follow" the light for the whole time - that is to say, you know which
slit each photon through and where they're going to end up - they should
act like particles the whole time, and there should therefore be no
interference pattern.

Andrew

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