Taeyoon Moon, Yun Soo Myung
We construct a generalized massive gravity by combining quadratic gravity with the Chern-Simons modified term in four dimensions. This is a parity-odd gravity theory. Considering the AdS$_4$ vacuum solution, we derive the linearized Einstein equation, which is not similar to that of the three dimensional generalized massive gravity. For the Kerr-Schild form of a perturbed metric tensor, the linearized equation reduces to a single massive scalar equation. At the tricritical points, we obtain a log-square wave solution. This is compared clearly to the three-dimensional tricritical generalized massive gravity whose dual field theory is a rank-3 logarithmic conformal field theory.
View original:
http://arxiv.org/abs/1207.4542
No comments:
Post a Comment