Brane cosmology with curvature corrections

G. Kofinas, Roy Maartens, E. Papantonopoulos

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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
Original languageEnglish
Pages (from-to)066
Number of pages1
JournalJournal of High Energy Physics
Issue number10
Publication statusPublished - Oct 2003


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