Gravitons from LQG
A paper that seems groundbreaking in Loop Quantum Gravity has appeared today:
Graviton propagator in loop quantum gravity
Authors: Eugenio Bianchi, Leonardo Modesto, Carlo Rovelli, Simone Speziale
They claim to compute some components of the graviton propagator from LQG. If the calculation is solid then this makes a big step towards the main problem haunting LQG, the mysterious low energy limit of the theory. I haven't read yet most of the paper, but the list of open issues in the conclusions is huge, so there is still a lot of work to be done.
I make the following predictions: a) Christine will link to the paper in the following hours; b) Lubos will do the same, perhaps a bit later, with a long explanation on how this paper and the whole of LQG are wrong, unphysical, pseudo-scientific, and perhaps even liberal and pro-global warming; c) perhaps Peter will link to it also, even later, gleefully commenting that LQG is doing more progress than string theory and that Lubos is becoming crazy becasue of that.
Graviton propagator in loop quantum gravity
Authors: Eugenio Bianchi, Leonardo Modesto, Carlo Rovelli, Simone Speziale
They claim to compute some components of the graviton propagator from LQG. If the calculation is solid then this makes a big step towards the main problem haunting LQG, the mysterious low energy limit of the theory. I haven't read yet most of the paper, but the list of open issues in the conclusions is huge, so there is still a lot of work to be done.
I make the following predictions: a) Christine will link to the paper in the following hours; b) Lubos will do the same, perhaps a bit later, with a long explanation on how this paper and the whole of LQG are wrong, unphysical, pseudo-scientific, and perhaps even liberal and pro-global warming; c) perhaps Peter will link to it also, even later, gleefully commenting that LQG is doing more progress than string theory and that Lubos is becoming crazy becasue of that.
posted by Alejandro at
11:32 AM
4 Comments:
You were right about Christine, I don't think Peter has liniked yet and I haven't checked out Lubos.
Over at Physicsforums they're running a poll/contest on the most influential paper of the current siz months or so. This one looks like a natural candidate, since it's got LQG legs (Rovelli) and talks in a manner that string theorists can relate to.
By
Anonymous, at 9:28 PM, April 11, 2006
Well, one day later and Lubos and Peter have still not reacted, so perhaps my prediction was too rash. A hit and miss thing, this prophesizing business.
By
Alejandro, at 11:24 AM, April 12, 2006
lubos responded as you predicted
(and as you just pointed out)
congratulations on 2 out of 3
Peter would probably have behaved properly but he was put out of kilter by Africa trip to watch the eclipse.
still not quite back to normal
By
Anonymous, at 8:24 PM, April 17, 2006
I had a lot fun of your predictions. Thx!
By
Anonymous, at 12:42 AM, May 28, 2006
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