Accelerating cosmologies from non-local higher-derivative gravity

Salvatore Capozziello; Emilio Elizalde; Shin'ichi Nojiri; Sergei D. Odintsov

doi:10.1016/j.physletb.2008.11.060

Accelerating cosmologies from non-local higher-derivative gravity

Salvatore Capozziello, Emilio Elizalde, Shin'ichi Nojiri, Sergei D. Odintsov

Research output: Contribution to journal › Article › Research › peer-review

115 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	193-198
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	671
Issue number	1
DOIs	https://doi.org/10.1016/j.physletb.2008.11.060
Publication status	Published - 12 Jan 2009

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abstract = "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. {\textcopyright} 2008 Elsevier B.V. All rights reserved.",

author = "Salvatore Capozziello and Emilio Elizalde and Shin'ichi Nojiri and Odintsov, {Sergei D.}",

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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 -