Consistent modified gravity: dark energy, acceleration and the absence of cosmic doomsday

Details Consistent modified gravity: dark energy, acceleration and the absence of cosmic doomsday Consistent modified gravity: dark energy, acceleration and the absence of cosmic doomsday

2004-09-16

arxiv.org/abs/hep-th/0409177v3

Class.Quant.Grav.22:L35,2005

Physics

High Energy Physics

High Energy Physics - Theory

LaTeX file, 9 pages, based on the talk given by S.D. Odintsov (Int. Conference Mathematical Methods in Physics, Rio de Janeiro

Scientific paper

10.1088/0264-9381/22/5/L01

We discuss the modified gravity which includes negative and positive powers of the curvature and which provides the gravitational dark energy. It is shown that in GR plus the term containing negative power of the curvature the cosmic speed-up may be achieved, while the effective phantom phase (with $w$ less than -1) follows when such term contains the fractional positive power of the curvature. The minimal coupling with matter makes the situation more interesting: even 1/R theory coupled with the usual ideal fliud may describe the (effective phantom) dark energy. The account of $R^2$ term (consistent modified gravity) may help to escape of cosmic doomsday.

Affiliated with

Also associated with

No associations

Rating

Consistent modified gravity: dark energy, acceleration and the absence of cosmic doomsday 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 Consistent modified gravity: dark energy, acceleration and the absence of cosmic doomsday, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Consistent modified gravity: dark energy, acceleration and the absence of cosmic doomsday will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-478789