X-Message-Number: 4445
Date: 24 May 95 14:59:29 EDT
From: yvan Bozzonetti <>
Subject: SCI.CRYONICS: Back to BONZO (BOson New ZOne).

	Do you recall the flame war some months ago about photons with low 
interactions and long range tunnel effect ? There has been a private 
exchange with B. Wowk on the subject until December 94. In it, he accepted 
to see photons as the convolution product of an infinite sine wave and a 
door function, limitting it at a finite length ( a shift from its first 
public position ). Then he requested me about reference on nonlinear 
systems, I gave him the source book reference for time dependant atom 
structure and interaction used in fusion device calculation and get no more 
answer. So, I start again on the subject in the public domain. (I am sorry 
for some reader to do so, my motive is in the feeling about the sensivity 
of that domain for brain reader systems : Yes, a forbiden subject on this 
list ! So, I'll don't report here on my talk to build a first step 

Back to photons:

	First, there is a shocking effect with photons : From Special 
Relativity, their proper time is always zero in duration. In their rest 
frame, time is infinitely expanded and what can take billions of years for 
us takes only one instant for the photon.

	Assume you have a source, a medium to travel in and a detector. In 
our time, emision at the source comes first, then there is the travel and 
at the end, a hit on the detector. For photons, all three things come in 
the same instant : So, if you take some action at the detector level, you 
can alter the photon behavior in the travel part, a process looking at 
first as time travel because the photon seems to know in advance (in our 
time ! ) what it will encounter at the detector. To put that shortly, a 
"special" (nonlinear) detector must produces special propagation 
properties, that is what I talked about some months ago, stressing mostly 
conditions at emission and may be not sufficiently at reception.

	B. Wowk has accepted the information theory picture of the photon 
where a wave is convolved with a door function (asquare wave in the 
simplest picture). If our exchange could have extended, my next argument 
would have been : There is one sine wave and three, not one, door functions 
: One at emission, one for the travel and one for the receptor. If you want 
to see nonlinear effects in the propagation domain, you have to use 
nonlinear systems at both ends : In the source and the detector. If there 
is one linear element in the set, it will erase everything and you get back 
to tooth radiography technology. This is because one linear element turns 
the single photon proper time instant linear.

	To understand what can happen, it would be useful to translate 
mathematical equations into pictures. Not everybody understand a 
convolution product, least so the effect of two or more such products.

	Assume a system in a coal mine is loading continuously a set of car 
with coal. This is the infinite sine wave we start with, each car is put 
for a wavelength. Now, to move coal at a distant location, the car line 
must be broken into finite car sets or trains, this is the first 
convolution product. Now, if you want to know how much coal is in each car, 
you must take each car separately to weight it. This "linearising" second 
convolution destroys any memory of the train length. If you are interested 
in trains, not individual cars, no linear systems must be introduced in the 
chain of events. This is obvious for trains, why not for photons ?

	 A snail mail physicist said me a long coherence length photon 
would produce a continuous jump between states in the detector without much 
effect on absorption coefficients. This is precisely what is pictured in 
the weighting car process. Another correspondant, a former space program 
Director, put it on more practical ground : "What is the point to look at 
long coherence length if there is no detectors able to handle them ? ". ( 
Yes, as said above, we need nonlinear detectors).

	To summarize : Special relativity constrains us to use both, 
nonlinear sources and detectors if we want to se nonlinear propagation 
effects. If there is one linear process in the chain, B. Wowk arguments are 
good, if there is a full nonlinear chain of elements, new effects enter 
into play. I'll get back to them in more details in comming BONZO messages.

			Yvan Bozzonetti.

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