Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2007-11-05
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
9pgs, Talk at Theory Canada III, to appear in CJP
Scientific paper
10.1139/P07-189
The entropy of apparent horizons is derived using coherent states or
semiclassical states in quantum gravity. The leading term is proportional to
area for large horizons, and the correction terms differ according to the
details of the graph which is used to regularise the quantum gravity phase
space variables.
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