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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
Brane cosmology with curvature corrections
Journal of High Energy Physics, Volume 7, No. 10, Year 2003
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Description
We study the cosmology of the Randall-Sundrum brane-world where the Einstein-Hilbert action is modified by curvature correction terms: a four-dimensional scalar curvature from induced gravity on the brane, and a five-dimensional Gauss-Bonnet curvature term. The combined effect of these curvature corrections to the action removes the infinite-density big bang singularity, although the curvature can still diverge for some parameter values. A radiation brane undergoes accelerated expansion near the minimal scale factor, for a range of parameters. This acceleration is driven by the geometric effects, without an inflaton field or negative pressures. At late times, conventional cosmology is recovered. © SISSA/ISAS 2003.
Authors & Co-Authors
Maartens, Roy
United Kingdom, Portsmouth
University of Portsmouth
Statistics
Citations: 74
Authors: 1
Affiliations: 3
Identifiers
Doi:
10.1088/1126-6708/2003/10/066
ISSN:
10298479
Research Areas
Cancer