Stability of the de Sitter spacetime in Horava-Lifshitz theory
arXiv:1003.2003 · doi:10.1142/S0217732310033268
Abstract
The stability of de Sitter spacetime in Horava-Lifshitz theory of gravity with projectability but without detailed balance condition is studied. It is found that, in contrast to the case of the Minkowski background, the spin-0 graviton now is stable for any given $ξ$, and free of ghost for $ξ\le 0$ in the infrared limit, where $ξ$ is the dynamical coupling constant.
Mod. Phys. Lett. A25, 2267-2279 (2010)