On 10/30/2019 12:43 AM, Philip Thrift wrote:
What descriptive term do you prefer? Those IR photons travel at
the SoL. The point is that if there's information available for
which-way, even if not observed, the interference is destroyed. AG
What does "available" mean? The information that left at the
speed of light is not "available" in any conventional sense at the
screen or detector in the experiment.
Brent
Here is an unconventional approach if via logical variables in
stochastic concurrent logic programming:
Timeless Histories
<https://codicalist.wordpress.com/2019/10/15/timeless-histories/>
0. Given a single source S, a set of possible destinations Dj, j∈J, a
set of possible histories historyi, i∈I (pictured as spacetime
trajectories) from S to one of the Dj.
1. Each history has an evolving phase e/i/·θ(t), /i/=√(-1), where t
runs from time leaving source to time arriving at destination.
2. Each history has a hidden (logical) variable* _W (for “weight”):
historyi(_Wi,e/i/·θi(t))
3. Each history is a “timeless” entity though (cf. /Timeless Reality/,
Victor J. Stenger). There is no “preferred” time direction.
4. At each destination Dj, the phases of the histories
historyi terminating at Dj are summed, the norm is taken, and the
result is unified with _Wi.
5. At the source S, the weights _Wi determine a probability
distribution on I: a single history is selected at the source.
Conclusion: With timeless histories, the choice is made in the present
(the time the histories leave the source) probabilistically from
weights determined in the future (the times the histories reach their
destinations).
* Logical variables are distinguished here by a “_” prefix. Not only
do they play a “hidden variable role, they introduce nonlocality into
logical processes.
cf. A histories perspective on characterizing quantum non-locality
<https://iopscience.iop.org/article/10.1088/1367-2630/16/3/033033/pdf>
~~~~~~~~~~~
/The limits of my language mean the limits of my world./
― Ludwig Wittgenstein
<https://www.goodreads.com/quotes/8835123-the-limits-of-my-language-mean-the-limits-of-my>
CLP (concurrent logic programming) and SCLP (stochastic CLP) might
provide a new language of logical processes for physics — nature as
written as “billions and billions” of (stochastic) processes. The
logical variable would play a role as a hidden variable (a term
mentioned in some quantum theory references) because its binding could
allow one process to instantly “update” another process separated from
it by either space or time (i.e., a program-linguistic analog of
spacial or temporal nonlocality).
There is no reason physics has to continue to be written in the
mathematical language of a century ago when there are new languages
today from the domain of programming.
/Underneath the surface of the classical world lies the hidden births
and deaths of quantal histories./
It seems to be a weakness of these history based quantum interpretations
that one must specify a "destination"...exactly like assuming a
measurement process in CI that is different from the rest of the evolution.
Brent
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