Cosmological dynamics of exponential gravity - INSPIRE

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Cosmological dynamics of exponential gravity

Jun, 2007

17 pages

Published in:

Class.Quant.Grav. 25 (2008) 135002

e-Print:

0706.1375 [gr-qc]

DOI:

10.1088/0264-9381/25/13/135002

View in:

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Abstract: (arXiv)

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.

Note:

17 pages LaTeX, 3 figures

gravitation: higher-order
dynamical system
field equations: solution
stability
asymptotic behavior
numerical calculations

References(55)

Figures(0)

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