The Einstein static universe in Loop Quantum Cosmology

Details The Einstein static universe in Loop Quantum Cosmology The Einstein static universe in Loop Quantum Cosmology

2007-06-29

arxiv.org/abs/0706.4431v2

Class.Quant.Grav.24:6243-6254,2007

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

12 pages, 7 figures; v2: minor changes to match published version in Classical and Quantum Gravity

Scientific paper

10.1088/0264-9381/24/24/007

Loop Quantum Cosmology strongly modifies the high-energy dynamics of Friedman-Robertson-Walker models and removes the big-bang singularity. We investigate how LQC corrections affect the stability properties of the Einstein static universe. In General Relativity, the Einstein static model with positive cosmological constant Lambda is unstable to homogeneous perturbations. We show that LQC modifications can lead to a centre of stability for a large enough positive value of Lambda.

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