1999/12/01 by Daisuke Ida
Physics and Astronomy · #gr-qc
paper · pdf · doi:10.1088/1126-6708/2000/09/014
published as JHEP 0009 (2000) 014 · 4 pages, no figures
arxiv created 1999/12/01 · arxiv updated 2009/11/30
A simple model of the brane-world cosmology has been proposed, which is characterized by four parameters, the bulk cosmological constant, the spatial curvature of the universe, the radiation strength arising from bulk space-time and the breaking parameter of Z2-symmetry. The bulk space-time is assumed to be locally static five-dimensional analogue of the Schwarzschild-anti-de Sitter space-time, and then the location of three-brane is determined by metric junction. The resulting Friedmann equation recovers standard cosmology, and a new term arises if the assumption Z2-symmetry is dropped, which behaves as cosmological term in the early universe, next turns to negative curvature term, and finally damps rapidly.