Brane worlds, string cosmology, and AdS/CFT -: art. no. 084027

被引：24

作者：

Anchordoqui, L ^{[1
]}

Edelstein, J

Nuñez, C

Bergliaffa, SP

Schvellinger, M

Trobo, M

Zyserman, F

机构：

[1] Northeastern Univ, Dept Phys, Boston, MA 02115 USA

[2] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA

[3] Ctr Brasileiro Pesquisas Fis, BR-22290180 Rio De Janeiro, Brazil

[4] MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA

[5] Natl Univ La Plata, Dept Fis, RA-1900 La Plata, Argentina

来源：

PHYSICAL REVIEW D | 2001年 / 64卷 / 08期

关键词：

D O I：

10.1103/PhysRevD.64.084027

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using the thin-shell formalism we discuss the motion of domain walls in de Sitter and anti-de Sitter (AdS) time-dependent bulks. This motion results in a dynamics for the brane scale factor. We show that in the case of a clean brane the scale factor describes both singular and nonsingular universes, with phases of contraction and expansion. These phases can be understood as quotients of AdS spacetime by a discrete symmetry group. We discuss this effect in some detail, and suggest how the AdS/CFT correspondence could be applied to obtain a nonperturbative description of brane-world string cosmology.

引用

页数：13

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