At 11:21 PM 10/26/4, Horace wrote:
>Horace,
>
>This paper might throw a monkey-wrench in your FTL Draft
>http://www.irims.org/quant-ph/030503/
>
>Below is a presentation outlining the devastating blow that Ashfar
>experiments deal to some interpretations of QM.
><http://faculty.washington.edu/jcramer/PowerPoint/Boskone_0402.ppt>http://f
>aculty.washington.edu/jcramer/PowerPoint/Boskone_0402.ppt
>
>
>Regards,
>Horace Smith

Thank you very much for the extremely relevant referances.  It will take me
a while to digest these, and I have already used up time I did not have
just in order to develop the concept.  I do have a couple immediate
observations however, based on a quick glance at the Ashfar reference.

First I note that Ashfar did not in fact tabulate individual photons, but
rather he assumed the result would be the same if he did. This kind of
distinction may in fact indicate a difficulty with converting the
experiment I proposed into a very high baud rate implementation.   On the
other hand, it highlights a possible result I somewhat expected, and that
is that a failure to account for the photons one at a time will lead to a
blurring of the interference.   It is thus of much scientific interest as
to exactly how, experimentally and quantitatively, such blurring comes
about as the data rate is increased.

Second, I should point out that a complete benchtop analog of the
experiment (i.e. of a single channel) that I suggested has indeed already
been carried out, as referenced in [1] and [2], with the result that the
interference pattern does indeed disappear when Alice uses her detectors,
and reappears when the detectors are not in place. The results were
accomplished one photon at a time however, not in a manner similar to
Ashfar's experiments.

>>[1] Kim et al, Phys. Rev. Lett., Vol 84, no. 1, pp 1-5
>>[2] Brian Green, *The Fabric of the Cosmos*, (New York, Alfred A Knopf,
>>2004), pp 193-197

What I have added to the experiment is merely a change in the relative
relocation of three subsets of the components of the experiment to the
distant locations Alice, Bob and Charlie.  If merely changing the relative
distance betweeen the components changes the results, then this would be a
major experimental finding in itself.

What I have suggested is a rearrangement of component locations that clealy
results in FTL signaling unless the results themselves change.  For
experimental convenience additional mirrors may be required, and/or fiber
related components, but there is no reason to expect the results to be
changed by either of these additions, especailly if the benchtop results
are not changed.  If the benchtop results are changed by adding some
mirrors, then I would expect that too would be a significant finding.

Regards,

Horace Heffner          


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