Modified non-local-F(R) gravity as the key for the inflation and dark energy
Abstract
We consider FRW cosmology in non-local modified gravity. Its local scalar-tensor formulation is developed. It is explicitly demonstrated that such theory may lead to the unification of early-time inflation with late-time cosmic acceleration. The quintessence or phantom era may emerge for specific form of the action. The coupled non-local-F(R) gravity is also investigated. It is shown that such theory being consistent with Solar System tests may lead to the known universe history sequence: inflation, radiation/matter dominance and dark epoch.
- Publication:
-
Physics Letters B
- Pub Date:
- January 2008
- DOI:
- 10.1016/j.physletb.2007.12.001
- arXiv:
- arXiv:0708.0924
- Bibcode:
- 2008PhLB..659..821N
- Keywords:
-
- 11.25.-w;
- 95.36.+x;
- 98.80.-k;
- Strings and branes;
- Dark energy;
- Cosmology;
- High Energy Physics - Theory;
- Astrophysics;
- General Relativity and Quantum Cosmology
- E-Print:
- LaTeX file, 9 pages, version to appear in PLB