On Wed, 12 Sep 2007 20:59:26 +0100, "George Dishman"
wrote:


"Henri Wilson" HW@.... wrote in message
.. .

...

You still haven't explained how the weak starlight that enters both
detectors
is coherent. Since it comes from many parts of the star,

He did, though perhaps he assumed too much of you, it
is coherent because each detection is of a _single_
photon and any photon is of course coherent with itself.

So every single photon frm a distant star is stretched to over 600 metres wide
by the time it reaches Earth?

Have you now fathomed that, or will you still state stupidities like:
"Just tell me how photons emitted from opposite sides of a star can end up
in
phase over a 600m wavefront".

Interferometry requires coherent light.

Interferometry works with individual photons even
in this configuration:

http://tinyurl.com/3dybf3

....and my statistical theory explains why...

George




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