Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2010-09-13
Phys.Rev.D82:104038,2010
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
18 pages; 1. We have extended section IIIC showing that the family of quantum Dirac observables constructed in the paper is in
Scientific paper
10.1103/PhysRevD.82.104038
..."but we do not have quantum gravity." This phrase is often used when analysis of a physical problem enters the regime in which quantum gravity effects should be taken into account. In fact, there are several models of the gravitational field coupled to (scalar) fields for which the quantization procedure can be completed using loop quantum gravity techniques. The model we present in this paper consist of the gravitational field coupled to a scalar field. The result has similar structure to the loop quantum cosmology models, except for that it involves all the local degrees of freedom because no symmetry reduction has been performed at the classical level.
Domagala Marcin
Giesel Kristina
Kaminski Wojciech
Lewandowski Jerzy
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