We study the dynamics of isotropic and homogeneous universes in the generalized Hořava-Lifshitz gravity, and classify all possible evolutions of vacuum spacetime. In the case without the detailed balance condition, we find a variety of phase structures of vacuum spacetimes depending on the coupling constants as well as the spatial curvature K and a cosmological constant λ. A bounce universe solution is obtained for λ>0,K = ±1 or λ = 0,K =-1, while an oscillation spacetime is found for λ≥ 0,K = 1, or λ<0,K = ±1.
|出版ステータス||Published - 2010 12月 1|
|イベント||20th Workshop on General Relativity and Gravitation in Japan, JGRG 2010 - Kyoto, Japan|
継続期間: 2010 9月 21 → 2010 9月 25
|Other||20th Workshop on General Relativity and Gravitation in Japan, JGRG 2010|
|Period||10/9/21 → 10/9/25|
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