Cosmological constant in spinfoam cosmology

Details Cosmological constant in spinfoam cosmology Cosmological constant in spinfoam cosmology

2011-01-20

arxiv.org/abs/1101.4049v1

Phys.Rev.D83:104015,2011

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

4 pages, 2 figures

Scientific paper

10.1103/PhysRevD.83.104015

We consider a simple modification of the amplitude defining the dynamics of loop quantum gravity, corresponding to the introduction of the cosmological constant, and possibly related to the SL(2,C)q extension of the theory recently considered by Fairbairn-Meusburger and Han. We show that in the context of spinfoam cosmology, this modification yields the de Sitter cosmological solution.

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