Tensor instability in the Eddington-inspired Born-Infeld theory of gravity

被引：75

作者：

Escamilla-Rivera, Celia ^{[1
,2
]}

Banados, Maximo ^{[3
]}

Ferreira, Pedro G. ^{[2
]}

机构：

[1] Euskal Herriko Unibertsitatea, Zientzia & Teknol Fak, Fis Teorikoaren & Zientziaren Hist Saila, Bilbao 48080, Spain

[2] Univ Oxford, DWB, Oxford OX1 3RH, England

[3] Pontificia Univ Catolica Chile, Santiago, Chile

来源：

PHYSICAL REVIEW D | 2012年 / 85卷 / 08期

关键词：

D O I：

10.1103/PhysRevD.85.087302

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In this paper, we consider an extension to Eddington's proposal for the gravitational action. We study tensor perturbations of a homogeneous and isotropic space-time in the Eddington regime, where modifications to Einstein gravity are strong. We find that the tensor mode is linearly unstable deep in the Eddington regime and discuss its cosmological implications.

引用

页数：5

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