From: John K Clark (jonkc@att.net)
Date: Sat May 11 2002 - 10:39:26 MDT
scerir wrote:
> > Photon(s) 1 just passes through a double slit D, that's all.
Photon 1 produces a dot (not a smudge, a dot) when it hits its screen, one
photon never, EVER, produces an interference pattern. If you fire a lot of
photons through the double slit then the dots will form a interference
pattern, but one photon just makes a dot. Always.You can't know exactly
where the dot will form but you can point to places it probably will form
and places where it probably will not. The probability distribution is in
the shape of a interference pattern, but when a photon actually hits a
screen it always produces a sharp dot.
>Photon(s) 2 reaches the screen S where *it* (which did
>not cross a double-slit!) draw a weird interference pattern.
Photon 2 like all photons will produce a sharp dot when it hits the screen,
if you send more photons in this way the new ones will cluster around the
first, but because photon 2 passed through no double slit there will be no
interference pattern.
> If you remove the D from the first beam, the interference
> pattern on S vanishes.
You will have no interference pattern from the second photon whatever you do
to the first photon.
Eliezer S. Yudkowsky Wrote:
>Put the source at the midpoint of Centauri and
>Earth, put D on Earth, put S on Centauri. Switch D
>on and off and S goes from patterned to unpatterned.
>Dot dot dash dot...
Eliezer if you can tell me exactly how to set that up so it could send
information and not just change one random sequence into another random
sequence then you're a better man than I am.
John K Clark jonkc@att.net
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