Accelerating cosmologies from non-local higher-derivative gravity

被引：119

作者：

Capozziello, Salvatore ^{[2
]}

Elizalde, Emilio ^{[3
]}

Nojiri, Shin'ichi ^{[1
]}

Odintsov, Sergei D. ^{[3
,4
]}

机构：

[1] Nagoya Univ, Dept Phys, Nagoya, Aichi 4648602, Japan

[2] Compl Univ Monte S Angelo, Univ Naples Federico II, Ist Nazl Fis Nucl, Dipartimento Sci Fis,Sez Napoli, I-80126 Naples, Italy

[3] Fac Ciencies, CSIC, IEEC, ICE, E-08193 Barcelona, Spain

[4] Fac Ciencies, ICREA, E-08193 Barcelona, Spain

来源：

PHYSICS LETTERS B | 2009年 / 671卷 / 01期

基金：

日本学术振兴会;

关键词：

DARK ENERGY;

D O I：

10.1016/j.physletb.2008.11.060

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页码：193 / 198

页数：6

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