Detailed balance in Horava-Lifshitz gravity

Details Detailed balance in Horava-Lifshitz gravity Detailed balance in Horava-Lifshitz gravity

2009-05-22

arxiv.org/abs/0905.3740v2

Phys.Rev.D81:044006,2010

Physics

High Energy Physics

High Energy Physics - Theory

10 pages. v2: discussion expanded and improved, section on generalizations added, typos corrected, references added, conclusio

Scientific paper

10.1103/PhysRevD.81.044006

We study Horava-Lifshitz gravity in the presence of a scalar field. When the detailed balance condition is implemented, a new term in the gravitational sector is added in order to maintain ultraviolet stability. The four-dimensional theory is of a scalar-tensor type with a positive cosmological constant and gravity is nonminimally coupled with the scalar and its gradient terms. The scalar field has a double-well potential and, if required to play the role of the inflation, can produce a scale-invariant spectrum. The total action is rather complicated and there is no analog of the Einstein frame where Lorentz invariance is recovered in the infrared. For these reasons it may be necessary to abandon detailed balance. We comment on open problems and future directions in anisotropic critical models of gravity.

Affiliated with

Also associated with

No associations

Rating

Detailed balance in Horava-Lifshitz gravity 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 Detailed balance in Horava-Lifshitz gravity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detailed balance in Horava-Lifshitz gravity will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-326132