Testing for w<-1 in the Solar System - art. no. 061303

被引：48

作者：

Martin, J ^{[1
]}

Schimd, C ^{[1
]}

Uzan, JP ^{[1
]}

机构：

[1] Univ Paris 06, Inst Astrophys Paris, CNRS, GreCO,UMR 7095, F-75014 Paris, France

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.96.061303

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In scalar-tensor theories of gravity, the equation of state of dark energy, w, can become smaller than -1 without violating any energy condition. The value of w today is tied to the level of deviations from general relativity which, in turn, is constrained by solar system and pulsars timing experiments. The conditions on these local constraints for w to be significantly less than -1 are established. It is demonstrated that this requires us to consider theories that differ from the Jordan-Fierz-Brans-Dicke theory and that involve either a steep coupling function or a steep potential. It is also shown how a robust measurement of w could probe scalar-tensor theories.

引用

页数：4

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Testing for w&lt;-1 in the Solar System - art. no. 061303

Testing for w<-1 in the Solar System - art. no. 061303