TOPICAL REVIEW: Cosmology and brane worlds: a review
Abstract
Cosmological consequences of the brane world scenario are reviewed in a pedagogical manner. According to the brane world idea, the standard model particles are confined on a hypersurface (a socalled brane), which is embedded in a higherdimensional spacetime (the socalled bulk). We begin our review with the simplest consistent brane world model: a single brane embedded in a fivedimensional antide Sitter spacetime. Then we include a scalar field in the bulk and discuss in detail the difference with the antide Sitter case. The geometry of the bulk spacetime is also analysed in some depth. Finally, we investigate the cosmology of a system with two branes and a bulk scalar field. We comment on brane collisions and summarize some open problems of brane world cosmology.
 Publication:

Classical and Quantum Gravity
 Pub Date:
 May 2003
 DOI:
 10.1088/02649381/20/9/202
 arXiv:
 arXiv:hepth/0303095
 Bibcode:
 2003CQGra..20R.201B
 Keywords:

 High Energy Physics  Theory;
 Astrophysics;
 General Relativity and Quantum Cosmology;
 High Energy Physics  Phenomenology
 EPrint:
 37 pages