期刊
PHYSICS LETTERS B
卷 671, 期 1, 页码 193-198出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2008.11.060
关键词
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资金
- INFN-CICYT
- Azione Integrata Italia-Spagna 2007 (MIUR Prot.) [464, 13/3/2006]
- MCIN (Spain) [FIS2006-02842, PIE2007-501023]
- Min. of Education, Science, Sports and Culture of Japan [18549001]
- Nagoya University provided the Japan Society for the Promotion of Science [G07]
- ICREA Funding Source: Custom
- Grants-in-Aid for Scientific Research [18549001] Funding Source: KAKEN
We study accelerating cosmological solutions of a general class of non-linear gravities which depend oil Gauss-Bonnet and other higher derivative invariants. To achieve this goal a local formulation will) auxiliary scalars for arbitrary higher-derivative non-local gravity is developed. It is demonstrated that non-local Gauss-Bonnet gravity call be reduced, in the local formation, to a model of string-inspired scalar-Gauss-Bonnet gravity. A natural unification, in the theory here developed. of the early-time inflation epoch with a late-time acceleration stage call also be realized. (C) 2008 Elsevier B.V. All rights reserved.
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