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

32 Scopus citations


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
Issue number10
StatePublished - 13 May 2010
Externally publishedYes


Dive into the research topics of 'Background cosmological dynamics in f(R) gravity and observational constraints'. Together they form a unique fingerprint.

Cite this