Emergent universe in chameleon, f(R) and f(T) gravity theories

Details Emergent universe in chameleon, f(R) and f(T) gravity theories Emergent universe in chameleon, f(R) and f(T) gravity theories

2011-05-04

arxiv.org/abs/1105.1091v1

Int.J.Mod.Phys.D20:1135-1152,2011

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

International Journal of Modern Physics D, 2011

Scientific paper

10.1142/S0218271811019293

In this work, we consider an emergent universe in generalized gravity theories like the chameleon, f(R) and f(T) gravities. We reconstruct the potential of the chameleon field under the emergent scenario of the universe and observe its increasing nature with the evolution of the universe. We reveal that in the emergent universe scenario, the equation-of-state parameter behaves like quintessence in the case of f(R) gravity and like phantom in the case of f(T) gravity.

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