Cosmological dynamics of exponential gravity

Abstract

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.

17 pages LaTeX, 3 figures

References in corpus (1)

• The evolution of density perturbations in f(R) gravity

Cited by in corpus (3)

• On the co-existence of matter dominated and accelerating solutions in f(G)-gravity
• The Existence of Einstein Static Universes and their Stability in Fourth order Theories of Gravity
• Higher Powers in Gravitation