Time-dependent cosmologies and their duals

Das, Sumit R. ; Michelson, Jeremy ; Narayan, K. ; Trivedi, Sandip P. (2006) Time-dependent cosmologies and their duals Physical Review D, 74 (2). 026002_1-026002_7. ISSN 0556-2821

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Official URL: http://prd.aps.org/abstract/PRD/v74/i2/e026002

Related URL: http://dx.doi.org/10.1103/PhysRevD.74.026002


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 AdS5×S5. 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.

Item Type:Article
Source:Copyright of this article belongs to American Physical Society.
ID Code:8727
Deposited On:28 Oct 2010 05:03
Last Modified:16 May 2016 18:40

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