Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2001-03-23
Class.Quant.Grav.18:2731-2784,2001
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
59 pages, LaTeX2e, 9 eps figures
Scientific paper
10.1088/0264-9381/18/14/310
We study a system of two pointlike particles coupled to three dimensional Einstein gravity. The reduced phase space can be considered as a deformed version of the phase space of two special-relativistic point particles in the centre of mass frame. When the system is quantized, we find some possibly general effects of quantum gravity, such as a minimal distances and a foaminess of the spacetime at the order of the Planck length. We also obtain a quantization of geometry, which restricts the possible asymptotic geometries of the universe.
Louko Jorma
Matschull Hans-Juergen
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