Re: do photons interact with gravitons?

From: Uncle Al (UncleAl0_at_hate.spam.net)
Date: 07/23/04 

Date: Fri, 23 Jul 2004 13:23:17 -0500

Jefferson Trimble wrote:
>
> Dear all, could someone explain to me whether gravitons interact with
> photons?

Gravitation is geometry. Gravitons are a mathematical
construction with no empirical support. They would be unique for
being tensor bosons (spin-2) rather than vector bosons (spin-1).

> They are both massless so i would have thought not, but then
> light travels in paths affected by the curvature of space which presumably
> is somehow informed by gravitons - which indicates some interaction.

http://arXiv.org/abs/gr-qc/9909014
Phys. Rev. Lett. 92 (2004) 121101
 falling light
 
> Also, (and I know gravitons are only theoretical entities as of now), how
> is it that gravitons are able to "escape" a black hole, whereas photons
> can't? I am imagining that a massive body emits gravitons which convey the
> gravitational force - surely gravitational waves propogate at the speed of
> light. Are gravitons somehow immune from the curvature of space, because
> they are the conveyors of it?

Gravitation is geometry. 

--
Uncle Al
http://www.mazepath.com/uncleal/
 (Toxic URL! Unsafe for children and most mammals)
http://www.mazepath.com/uncleal/qz.pdf

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