Brane-cosmology dynamics with induced gravity
Abstract
Description
The Friedmann equations for a brane with induced gravity are analyzed and compared with the standard general relativity and Randall-Sundrum cases. Randall-Sundrum gravity modified the early universe dynamics, whereas induced gravity changes the late universe evolution. The early and late time limits are investigated. Induced gravity effects can contribute to late-universe acceleration. This conditions for this are found. Qualitative analysis is given for a range of scalar field potentials.
14 pages, 25 eps figures, higher-resolution figures can be obtained from the author. Minor corrections. To appear in Gen.Rel.Grav. 36 (2004)
14 pages, 25 eps figures, higher-resolution figures can be obtained from the author. Minor corrections. To appear in Gen.Rel.Grav. 36 (2004)