TY - JOUR
T1 - Accelerating cosmologies from non-local higher-derivative gravity
AU - Capozziello, Salvatore
AU - Elizalde, Emilio
AU - Nojiri, Shin'ichi
AU - Odintsov, Sergei D.
PY - 2009/1/12
Y1 - 2009/1/12
N2 - We study accelerating cosmological solutions of a general class of non-linear gravities which depend on Gauss-Bonnet and other higher derivative invariants. To achieve this goal a local formulation with auxiliary scalars for arbitrary higher-derivative non-local gravity is developed. It is demonstrated that non-local Gauss-Bonnet gravity can be reduced, in the local formulation, 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 can also be realized. © 2008 Elsevier B.V. All rights reserved.
AB - We study accelerating cosmological solutions of a general class of non-linear gravities which depend on Gauss-Bonnet and other higher derivative invariants. To achieve this goal a local formulation with auxiliary scalars for arbitrary higher-derivative non-local gravity is developed. It is demonstrated that non-local Gauss-Bonnet gravity can be reduced, in the local formulation, 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 can also be realized. © 2008 Elsevier B.V. All rights reserved.
U2 - 10.1016/j.physletb.2008.11.060
DO - 10.1016/j.physletb.2008.11.060
M3 - Article
VL - 671
SP - 193
EP - 198
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
IS - 1
ER -