The world is not enough
General Relativity and Quantum Cosmology
2009-10-31 v3 Astrophysics
High Energy Physics - Theory
Abstract
We show that the 5-dimensional model introduced by Randall and Sundrum is (half of) a wormhole, and that this is a general result in models of the RS type. We also discuss the gravitational trapping of a scalar particle in 5-d spacetimes. Finally, we present a simple model of brane-world cosmology in which the background is a static anti-de Sitter manifold, and the location of the two 3-branes is determined by the technique of ``surgical grafting''.
Cite
@article{arxiv.gr-qc/0001019,
title = {The world is not enough},
author = {Luis A. Anchordoqui and Santiago E. Perez Bergliaffa},
journal= {arXiv preprint arXiv:gr-qc/0001019},
year = {2009}
}
Comments
To be published in Phys. Rev. D with the title: ``Wormhole-surgery and cosmology on the brane: The world is not enough''. This revised version includes a discussion on the mechanism of gravitational trapping for a scalar particle which will not be published in the journal