2004/04/02 by Philippe Brax, Carsten van de Bruck, Anne-Christine Davis +1 · 6 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Brane #Brane cosmology #Cosmic microwave background #Cosmology #Cosmology and Gravitation Theories #De Sitter universe #Moduli #Noncommutative and Quantum Gravity Theories #Scalar (mathematics) #Scalar field #Universe #hep-th
paper · pdf · doi:10.1088/0034-4885/67/12/r02
published as Rept.Prog.Phys.67:2183-2232,2004 · 57 pages, 6 figures, invited review for Rep. Prog. Phys
arxiv created 2004/04/02 · openalex publication_date 2004/11/03 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Recent developments in the physics of extra dimensions have opened up new avenues to test such theories. We review cosmological aspects of brane world scenarios such as the Randall–Sundrum brane model and two-brane systems with a bulk scalar field. We start with the simplest brane world scenario leading to a consistent cosmology: a brane embedded in an anti-de Sitter space–time. We generalize this setting to the case with a bulk scalar field and then to two-brane systems. We discuss different ways of obtaining a low-energy effective theory for two-brane systems, such as the moduli space approximation and the low-energy expansion. A comparison between the different methods is given. Cosmological perturbations are briefly discussed as well as early universe scenarios such as the cyclic model and the born-again brane world model. Finally we also present some physical consequences of brane world scenarios on the cosmic microwave background and the variation of constants.