Brane cosmology with curvature corrections | Zendy

Georgios Kofinas | Zendy; Roy Maartens | Zendy; Eleftherios Papantonopoulos | Zendy

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Brane cosmology with curvature corrections

Author(s) -

Georgios Kofinas,

Roy Maartens,

Eleftherios Papantonopoulos

Publication year - 2003

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2003/10/066

Subject(s) - physics , brane , curvature , inflaton , cosmology , randall–sundrum model , scalar curvature , singularity , scale factor (cosmology) , ultimate fate of the universe , theoretical physics , classical mechanics , mathematical physics , inflation (cosmology) , physical cosmology , geometry , metric expansion of space , quantum mechanics , dark energy , mathematics

We study the cosmology of the Randall-Sundrum brane-world where theEinstein-Hilbert action is modified by curvature correction terms: afour-dimensional scalar curvature from induced gravity on the brane, and afive-dimensional Gauss-Bonnet curvature term. The combined effect of thesecurvature corrections to the action removes the infinite-density big bangsingularity, although the curvature can still diverge for some parametervalues. A radiation brane undergoes accelerated expansion near the minimalscale factor, for a range of parameters. This acceleration is driven by thegeometric effects, without an inflaton field or negative pressures. At latetimes, conventional cosmology is recovered.Comment: RevTex4, 8 pages, no figures, minor change

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