Cosmological dynamics of exponential gravity

Details Cosmological dynamics of exponential gravity Cosmological dynamics of exponential gravity

2007-06-10

arxiv.org/abs/0706.1375v1

Class.Quant.Grav.25:135002,2008

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

17 pages LaTeX, 3 figures

Scientific paper

10.1088/0264-9381/25/13/135002

We present a detailed investigation of the cosmological dynamics based on $\exp (-R/{\Lambda})$ gravity. We apply the dynamical system approach to both the vacuum and matter cases and obtain exact solutions and their stability in the finite and asymptotic regimes. The results show that cosmic histories exist which admit a double de-Sitter phase which could be useful for describing the early and the late-time accelerating universe.

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