Evolution of tensor perturbations in scalar-tensor theories of gravity

被引：3
|
作者：
Carloni, Sante [1 ]
Dunsby, Peter K. S.
机构：
[1] Univ Cape Town, Dept Math & Appl Math, ZA-7701 Rondebosch, South Africa
[2] S African Astron Observ, ZA-7925 Cape Town, South Africa
来源：
PHYSICAL REVIEW D | 2007年 / 75卷 / 06期
关键词：
D O I：
10.1103/PhysRevD.75.064012
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The evolution equations for tensor perturbations in a generic scalar-tensor theory of gravity are presented. Exact solutions are given for a specific class of theories and Friedmann-Lemaitre-Robertson-Walker backgrounds. In these cases it is shown that, although the evolution of tensor models depends on the choice of parameters of the theory, no amplification is possible if the gravitational interaction is attractive.
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页数：9
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