Goldberger-Wise variations: stabilizing brane models with a bulk scalar
High Energy Physics - Theory
2009-11-10 v2 Astrophysics
General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
Abstract
Braneworld scenarios with compact extra-dimensions need the volume of the extra space to be stabilized. Goldberger and Wise have introduced a simple mechanism, based on the presence of a bulk scalar field, able to stabilize the radius of the Randall-Sundrum model. Here, we transpose the same mechanism to generic single-brane and two-brane models, with one extra dimension and arbitrary scalar potentials in the bulk and on the branes. The single-brane construction turns out to be always unstable, independently of the bulk and brane potentials. In the case of two branes, we derive some generic criteria ensuring the stabilization or destabilization of the system.
Cite
@article{arxiv.hep-th/0310007,
title = {Goldberger-Wise variations: stabilizing brane models with a bulk scalar},
author = {Julien Lesgourgues and Lorenzo Sorbo},
journal= {arXiv preprint arXiv:hep-th/0310007},
year = {2009}
}
Comments
8 pages, 2 figures. 1 figure and one subsection added. version published on PRD