Critical gravity in the Chern-Simons modified gravity

Details Critical gravity in the Chern-Simons modified gravity Critical gravity in the Chern-Simons modified gravity

2011-08-12

arxiv.org/abs/1108.2612v2

Physics

High Energy Physics

High Energy Physics - Theory

13 pages, 1 figure, version to appear in EPJC

Scientific paper

We perform the perturbation analysis of the Chern-Simons modified gravity around the AdS$_4$ spacetimes (its curvature radius $\ell$) to obtain the critical gravity. In general, we could not obtain an explicit form of perturbed Einstein equation which shows a massive graviton propagation clearly, but for the Kerr-Schild perturbation and Chern-Simons coupling $\theta=kx/y$, we find the AdS wave as a single massive solution to the perturbed Einstein equation. Its mass squared is given by $M^2=[-9+(2\ell^2/k-1)^2]/4\ell^2$. At the critical point of $M^2=0(k=\ell^2/2)$, the solution takes the log-form and the linearized excitation energies vanish.

Affiliated with

Also associated with

No associations

Rating

Critical gravity in the Chern-Simons modified 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 Critical gravity in the Chern-Simons modified gravity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Critical gravity in the Chern-Simons modified gravity will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-16285