If Gauss-Bonnet interaction plays the role of dark energy

Details If Gauss-Bonnet interaction plays the role of dark energy If Gauss-Bonnet interaction plays the role of dark energy

2006-08-04

arxiv.org/abs/astro-ph/0608104v3

Phys.Lett.B645:1-5,2007

Astronomy and Astrophysics

Astrophysics

6 pages, Latex

Scientific paper

10.1016/j.physletb.2006.11.070

Gauss-Bonnet-scalar interaction has been found to play a crucial role from the beginning till the late time of cosmological evolution. A cosmological model has been constructed where the Universe starts with exponential expansion but with infinite deceleration (q), and infinite equation of state (w) parameters. During evolution it passes through the stiff fluid era, q=2, w=1, the radiation dominated era, q=1, w=1/3 and the matter dominated era, q=1/2, w=0. Finally, deceleration halts, q=0, w=-1/3, and it then encounters a transition to the accelerating phase. Asymptotically the Universe reaches yet another inflationary phase as q and w go over to -1. Such evolution is independent of the form of the potential and the sign of the kinetic energy term ie., even a noncanonical kinetic energy is unable to phantomize (w<-1) the model.

Affiliated with

Also associated with

No associations

Rating

If Gauss-Bonnet interaction plays the role of dark energy 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 If Gauss-Bonnet interaction plays the role of dark energy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and If Gauss-Bonnet interaction plays the role of dark energy will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-49704