Recent content by Jason_0

Julian, I don't think this is correct as far as the current LQG bh model is concerned. The IH is not quite independent from the bulk as there are boundary conditions, which have to be fulfilled to recouple the bulk and surface dof. It is rather that the diffinvariance of a graph embedded in the...

yes, exactly. i find this strange.

apparently, there is some sort of changing picture. in the semiclassical regime incl. matter the states seem to have to be indistinguishable. http://www.perimeterinstitute.ca/videos/black-holes-loop-quantum-gravity-new-insights-and-perspectives-semiclassical-consistency how can one understand...

rovellitis? is that an insider? what does he mean with that?

So anybody? I thought this would be an easy question to answer, since the BH entropy explanation from quantum gravitational excitations of the horizon geometry is claimed to be one of the major success stories of LQG.

Apart from that... more confusing is that there is no sort of Gibbs paradox appearing if one uses distinguishable punctures

I have the impression that this paper played an important role in the formation of the distinguishability point. He claims, if the punctures were supposed to be indistinguishable, one would not arrive at the "proper" BH entropy area relation S~A. I have computed his calculation for both cases...

thx @julian "This isn't the case and is a subtle point - it is discussed on pages 310-311 in Rovelli's book." Ι read the argument today and found it in the corresponding paper C Rovelli: “Loop Quantum Gravity and Black Hole Physics”, Helvetica Physica Acta, 69 (1996) 582; gr-qc/9608032...

Thank you @Julian. But still, where is the mathematical and physical reason for the distinguishability. What are its consequences? I think this is conceptually very important, since it should decisively coin the state counting, don't you think?

Sorry @atyy, but I do not see how you refer to the distinguishability of the horizon states. However, thanks for the links. Even there it is not really spelled out, how the distinguishability is manifested.

I am currently working myself into black hole physics and I am interested in their possible quantum geometric description by means of LQG. Can anybody please tell me good sources to start with? Since black holes were studied in this framework for a longer time, what is the most recent...