2011年9月
Nonlinear superhorizon perturbations in Horava-Lifshitz gravity
PHYSICAL REVIEW D
- ,
- 巻
- 84
- 号
- 6
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1103/PhysRevD.84.064025
- 出版者・発行元
- AMER PHYSICAL SOC
We perform a fully nonlinear analysis of superhorizon perturbation in Horava-Lifshitz gravity, based on the gradient expansion method. We present a concrete expression for the solution of gravity equations up to the second order in the gradient expansion, and prove that the solution can be extended to any order. The result provides yet another example for analogue of the Vainshtein effect: the nonlinear solution is regular in the limit lambda -> 1 and recovers general relativity coupled to dark matter at low energy. Finally, we propose a definition of nonlinear curvature perturbation R in Horava-Lifshitz gravity and show that it is conserved up to the first order in the gradient expansion.
- リンク情報
-
- DOI
- https://doi.org/10.1103/PhysRevD.84.064025
- arXiv
- http://arxiv.org/abs/arXiv:1105.0246
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000295046700004&DestApp=WOS_CPL
- URL
- http://arxiv.org/abs/1105.0246v2
- ID情報
-
- DOI : 10.1103/PhysRevD.84.064025
- ISSN : 1550-7998
- arXiv ID : arXiv:1105.0246
- Web of Science ID : WOS:000295046700004