Stability of the de Sitter spacetime in Horava-Lifshitz theory

Details Stability of the de Sitter spacetime in Horava-Lifshitz theory Stability of the de Sitter spacetime in Horava-Lifshitz theory

2010-03-10

arxiv.org/abs/1003.2003v3

Physics

High Energy Physics

High Energy Physics - Theory

Mod. Phys. Lett. A25, 2267-2279 (2010)

Scientific paper

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 $\xi$, and free of ghost for $\xi \le 0$
in the infrared limit, where $\xi$ is the dynamical coupling constant.

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