From: Ken Clements (Ken@Innovation-On-Demand.com)
Date: Sat May 11 2002 - 10:05:50 MDT
scerir wrote:
>
> Shih et al. performed a different experiment, this way.
>
>
> |> >
> | source of | >
> <---|<------ two entangled ------->| > >
> | ph.1 photons ph.2 | >
> |> >
> D S
>
> ph.1 = photon 1
> ph.2 = photon 2
> D = a double slit
> S = a screen
>
> Photon(s) 1 just passes through a double slit D, that's all.
> Photon(s) 2 reaches the screen S where *it* (which did not
> cross a double-slit!) draw a weird interference pattern.
> If you remove the D from the first beam, the interference
> pattern on S vanishes.
>
Isn't it true that the pattern at S does not become detectable until a
number of ph.2 have arrived? And, isn't it true that the experiment did
not measure the minimum time after a change at D, that it is possible to
see the change at S?
-Ken
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