Causality of the brane universe

被引：62

作者：

Ishihara, H ^{[1
]}

机构：

[1] Observ Paris, Dept Astrophys Relativiste & Cosmol, F-92195 Meudon, France

[2] Tokyo Inst Technol, Dept Phys, Meguro Ku, Tokyo 152, Japan

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.86.381

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Causal structure of the brane universe with respect to null geodesics in the bulk spacetime is studied. It is pointed out that apparent causality violation is possible for the brane universe which contains matter energy. It is also shown that there is no "horizon problem" in the Friedmann-Robertson-Walker brane universe.

引用

页码：381 / 384

页数：4