Background cosmological dynamics in f(R) gravity and observational constraints

Amna Ali, RADOUANE GANNOUJI , M. Sami, Anjan A. Sen

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

In this paper, we carry out a study of viable cosmological models in f(R) gravity at the background level. We use observable parameters like Ω and γ to form an autonomous system of equations and show that the models under consideration exhibit two different regimes in their time evolution, namely, a phantom phase followed by a quintessencelike behavior. We employ state finder parameters to emphasize a characteristic discriminative signature of these models.

Original languageEnglish
Article number104029
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume81
Issue number10
DOIs
StatePublished - 13 May 2010

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