Time-dependent cosmologies and their duals

被引：98

作者：

Das, Sumit R. ^{[1
]}

Michelson, Jeremy

Narayan, K.

Trivedi, Sandip P.

机构：

[1] Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA

[2] Tata Inst Fundamental Res, Dept Theoret Phys, Bombay 400005, Maharashtra, India

来源：

PHYSICAL REVIEW D | 2006年 / 74卷 / 02期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevD.74.026002

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We construct a family of solutions in IIB supergravity theory. These are time-dependent or depend on a light-like coordinate and can be thought of as deformations of AdS(5)xS(5). Several of the solutions have singularities. The light-like solutions preserve 8 supersymmetries. We argue that these solutions are dual to the N=4 gauge theory in a 3+1 dimensional space-time with a metric and a gauge coupling that is varying with time or the light-like direction, respectively. This identification allows us to map the question of singularity resolution to the dual gauge theory.

引用

页数：7