arXiv:hep-th/0108215·v1·High Energy Physics — Theory
Brane-World Cosmology, Bulk Scalars and Perturbations
P. Brax🇨🇭 · C. van de Bruck🇬🇧 · A.C. Davis🇬🇧
Abstract
We investigate aspects of cosmology in brane world theories with a bulk scalar field. We concentrate on a recent model motivated from supergravity in singular spaces. After discussing the background evolution of such a brane-world, we present the evolution of the density contrast. We compare our results to those obtained in the (second) Randall-Sundrum scenario and usual 4D scalar-tensor theories.
Comments: 29 pages, one figure, JHEP3-style