Re: Double Slit variant

From: scerir (scerir_at_libero.it)
Date: 11/16/04 

Date: Tue, 16 Nov 2004 08:56:40 +0000 (UTC)

Blake Winter
> I think the variation I mentioned
> is simpler than the one in the paper.

TwoSlit1 <----S----------------> TwoSlit2

S is a perfect, clean, ideal source
of entangled photons, one going to
TwoSlit1, the other to TwoSlit2.
The path between S and the TwoSlit1
interferometer is shorter than the path
between S and the TwoSlit2 interferometer.
Now the photon going left, to TwoSlit1,
is recorded (by a screen or whatever)
before the photon going right enters the
TwoSlit2. Do you really think that the spot
recorded by the screen at TwoSlit1
is changed by whatever you might choose
to do at TwoSlit2? If nothing changes,
how can the observer at TwoSlit-1 get
some information?
s.