Vacuum structure for scalar cosmological perturbations in modified gravity models

被引：0
|
作者：
De Felice, Antonio [1 ]
机构：
[1] Univ Louvain, Ctr Particle Phys & Phenomenol, Theoret & Math Phys Grp, B-1348 Louvain, Belgium
来源：
DARK SIDE OF THE UNIVERSE | 2009年 / 1178卷
关键词：
Modified gravity; Cosmological perturbation theory; DARK ENERGY; CONSTRAINTS; VIABILITY;
D O I：
10.1063/1.3264548
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A superluminal, scale-dependent propagation for the scalar perturbations around a cosmological background is proven to exist for general modifications of gravity, whose action can be written as a general function of R, the Ricci scalar and the G Gauss-Bonnet term.
引用
收藏
页码：138 / 141
页数：4
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