Non-minimally coupled f(R) Cosmology

Details Non-minimally coupled f(R) Cosmology Non-minimally coupled f(R) Cosmology

2010-07-29

arxiv.org/abs/1007.5250v1

Phys.Lett.B696:309-314,2011

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

7 pages, Latex style, 8 eps figures

Scientific paper

10.1016/j.physletb.2010.12.056

We investigate the consequences of non-minimal gravitational coupling to matter and study how it differs from the case of minimal coupling by choosing certain simple forms for the nature of coupling, The values of the parameters are specified at $z=0$ (present epoch) and the equations are evolved backwards to calculate the evolution of cosmological parameters. We find that the Hubble parameter evolves more slowly in non-minimal coupling case as compared to the minimal coupling case. In both the cases, the universe accelerates around present time, and enters the decelerating regime in the past. Using the latest Union2 dataset for supernova Type Ia observations as well as the data for baryon acoustic oscillation (BAO) from SDSS observations, we constraint the parameters of Linder exponential model in the two different approaches. We find that there is a upper bound on model parameter in minimal coupling. But for non-minimal coupling case, there is range of allowed values for the model parameter.

Affiliated with

Also associated with

No associations

Rating

Non-minimally coupled f(R) Cosmology does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Non-minimally coupled f(R) Cosmology, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-minimally coupled f(R) Cosmology will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-451874