Brane Worlds, String Cosmology, and AdS/CFT
High Energy Physics - Theory
2008-11-26 v2 Astrophysics
General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
Abstract
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 non-singular 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 non perturbative description of brane-world string cosmology.
Cite
@article{arxiv.hep-th/0106127,
title = {Brane Worlds, String Cosmology, and AdS/CFT},
author = {Luis Anchordoqui and Jose Edelstein and Carlos Nunez and Santiago Perez Bergliaffa and Martin Schvellinger and Marta Trobo and Fabio Zyserman},
journal= {arXiv preprint arXiv:hep-th/0106127},
year = {2008}
}
Comments
(v1) 31 pages revtex, 13 eps figures (v2) references added