Brane cosmologies without orbifolds

被引：120

作者：

Collins, H ^{[1
]}

Holdom, B ^{[1
]}

机构：

[1] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada

来源：

PHYSICAL REVIEW D | 2000年 / 62卷 / 10期

关键词：

D O I：

10.1103/PhysRevD.62.105009

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the dynamics of branes in configurations where (1) the brane is the edge of a single anti-de Sitter (AdS) space and (2) the brane is the surface of a vacuum bubble expanding into a Schwarzschild or Ads-Schwarzschild bulk. In both cases we find solutions that resemble the standard Robertson-Walker cosmologies, although, in the latter, the: evolution can be controlled by a mass parameter in the bulk metric. We also include a term in the brane action for the scalar curvature. This term adds a contribution to the low-energy theory of gravity which does not need to affect the cosmology, but which is necessary for the surface of the vacuum bubble to recover four-dimensional gravity.

引用

页码：1 / 7

页数：7

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