Re: The Future of Physics and the World
- From: whopkins@xxxxxxxxxxx
- Date: 4 Apr 2005 17:45:08 -0700
I hope you find something. But then you're going to face the real
mystery: just what did you find?
I think you're seriously *under*estimating the significance of what
you're looking for. Given the equivalence I outlined between the
different geometrical formulations of gravity theory (teleparallel = GR
+ matter fields), you're not actually testing between theories of
gravity. Both should provide sufficient infrastructure to support the
finds.
No. What you're actually testing is the Standard Model, itself. A
chiral anomaly -- unless explained away by the Weak force -- is a 5th
force. It's actually the Standard Model which this won't fit into.
You won't merely be nudging gravitational physics ... which will remain
intact ... but pushing over a foundation of particle physics.
Uncle Al wrote:
> Please do not solve any of the world's major problems
> before Uncle Al can overthrow all of physics.
Gandhi worries about fixing the world. Alexander simply cuts the knot
and imposes direction and order on it. Hence, all the history books
make a clean divide between the pre 332BC era and post 332BC.
New worlds need new physics.
The outline I gave in the article of the reconciliation of GR with QFT
by a strategy to handle QFT on globally non-hyperbolic spacetimes is
something entirely new.
If this fits, with Jacobson's result (the derivability of GR in the
classical limit from the Hawking formula, *alone*, applied to local
Rindler horizons) emerging as a consequence of the requirement to
ensure consistency between overlapping locally hyperbolic regions, then
you're getting QG through the back door!
The major issue has always been how to extend QFT to achronal
spacetimes, because you want to be handle ALL types of classical
backgrounds (not just the globally hyperbolic ones) before even
starting to address the issue of how the background is quantized.
Here, the quantization is simply skipped because the gravitational
lensing effect Jacobson derived (Jacobson got Einstein's equations
through gravitational lensing as a consequence of a compatibility
constraint that comes out of making the Hawking formula work on
overlapping parts of local Rindler horizons).
The novelty is the way I'm applying the result. He was still working
in chronal spacetimes with a global t parameter. I divested the need
for the global t, replacing it by local homotopies. But the cost is
that the pure quantum vacuum has to be given up -- the vacuum is
necessarily a thermal state and no global pure state can exist. This,
in fact, is something that ties closely to the research by Friedmann
(my former thesis advisor), Thorne, Morris, Wald, et. al., showing the
fundamental problems with making quantum fields fit consistently in the
presence of closed time-like loops or other causal anomalies. It can
be done, but only up to a point. The obstacle is, in effect, the
insistence on retaining a pure state for the vacuum.
Going over to a thermal state, the thermal noise of the underlying heat
bath is enough to cancel out the time-traveller inconsistencies that
result in achronal spacetimes.
.
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