Stability of modified gravity models

被引：179

作者：

Faraoni, V ^{[1
]}

Nadeau, S ^{[1
]}

机构：

[1] Bishops Univ, Dept Phys, Lennoxville, PQ J1M 1Z7, Canada

来源：

PHYSICAL REVIEW D | 2005年 / 72卷 / 12期

关键词：

D O I：

10.1103/PhysRevD.72.124005

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Conditions for the existence and stability of de Sitter space in modified gravity are derived by considering inhomogeneous perturbations in a gauge-invariant formalism. The stability condition coincides with the corresponding condition for stability with respect to homogeneous perturbations, while this is not the case in scalar-tensor gravity. The stability criterion is applied to various modified gravity models of the early and the present universe.

引用

页数：10

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