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Anatomy of a bounce

A J M Medved

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Holographic considerations are used in the scrutiny of a special class of braneworld cosmologies. Inherent to this class, the brane typically bounces, at a finite size, as a consequence of a charged black hole in the bulk. Whereas a prior treatment Medved A J M (2003 J. High Energy Phys. JHEP05(2003)008 (Preprint hep-th/0301010)) emphasized a brane that is void of standard-model matter, the analysis is now extended to include an intrinsic (radiation-dominated) matter source. An interesting feature of this generalized model is that a bounce is no longer guaranteed but, rather, depends on the initial conditions. Ultimately, we demonstrate that compliance with an appropriate holographic bound is a sufficient pre-requisite for a bounce to occur.


PACS

98.80.-k Cosmology

04.70.-s Physics of black holes

04.60.-m Quantum gravity

MSC

83F05 Cosmology

83C57 Black holes

81T30 String and superstring theories; other extended objects (e.g., branes) (See also 83E30)

Subjects

Gravitation and cosmology

Astrophysics and astroparticles

Dates

Issue 11 (7 June 2004)

Received 2 October 2003

Published 4 May 2004



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