Brane-world cosmology

Abstract

Brane-world models, where observers are restricted to a brane in a higher-dimensional spacetime, offer a novel perspective on cosmology. I discuss some approaches to cosmology in extra dimensions and some interesting aspects of gravity and cosmology in brane-world models.Comment: 16 pages, 4 figures, to appear in proceedings of ERE2005, the XXVIII Spanish Relativity Meeting, Oviedo, Spai