Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2003-11-10
Phys.Rev. D69 (2004) 104024
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
4 pages, revtex4, 3 figures
Scientific paper
10.1103/PhysRevD.69.104024
Considering the Barrett-Crane spin foam model for quantum gravity with
(positive) cosmological constant, we show that speeds must be quantized and we
investigate the physical implications of this effect such as the emergence of
an effective deformed Poincare symmetry.
Girelli Florian
Livine Etera R.
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