From Asymptotic Safety to Dark Energy

Details From Asymptotic Safety to Dark Energy From Asymptotic Safety to Dark Energy

2011-06-07

arxiv.org/abs/1106.1435v1

Phys. Lett. B 704, 10 (2011)

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

6 pages, 1 figure

Scientific paper

10.1016/j.physletb.2011.08.075

We consider renormalization group flow applied to the cosmological dynamical equations. A consistency condition arising from energy-momentum conservation links the flow parameters to the cosmological evolution, restricting possible behaviors. Three classes of cosmological fixed points for dark energy plus a barotropic fluid are found: a dark energy dominated universe, which can be either accelerating or decelerating depending on the RG flow parameters, a barotropic dominated universe where dark energy fades away, and solutions where the gravitational and potential couplings cease to flow. If the IR fixed point coincides with the asymptotically safe UV fixed point then the dark energy pressure vanishes in the first class, while (only) in the de Sitter limit of the third class the RG cutoff scale becomes the Hubble scale.

Affiliated with

Also associated with

No associations

Rating

From Asymptotic Safety to 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 From Asymptotic Safety to Dark Energy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and From Asymptotic Safety to Dark Energy will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-319510