Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2007-08-14
Europhys.Lett.81:50004,2008
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
6 pages, 2 figures, v2: typos corrected
Scientific paper
10.1209/0295-5075/81/50004
We give an independent derivation of the Engle-Pereira-Rovelli spinfoam model
for quantum gravity which recently appeared in [arXiv:0705.2388]. Using the
coherent state techniques introduced earlier in [arXiv:0705.0674], we show that
the EPR model realizes a consistent imposition of the simplicity constraints
implementing general relativity from a topological BF theory.
Livine Etera R.
Speziale Simone
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