Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2002-02-18
Class.Quant.Grav. 19 (2002) 4671-4682
Physics
High Energy Physics
High Energy Physics - Theory
20 pages, no figures, typos corrected, refs added, section IV changed yielding novel results
Scientific paper
10.1088/0264-9381/19/18/304
We consider 5-dimensional spacetimes of constant 3-dimensional spatial curvature in the presence of a bulk cosmological constant. We find the general solution of such a configuration in the presence of a Gauss-Bonnet term. Two classes of non-trivial bulk solutions are found. The first class is valid only under a fine tuning relation between the Gauss-Bonnet coupling constant and the cosmological constant of the bulk spacetime. The second class of solutions are static and are the extensions of the AdS-Schwarzchild black holes. Hence in the absence of a cosmological constant or if the fine tuning relation is not true, the generalised Birkhoff's staticity theorem holds even in the presence of Gauss-Bonnet curvature terms. We examine the consequences in brane world cosmology obtaining the generalised Friedmann equations for a perfect fluid 3-brane and discuss how this modifies the usual scenario.
Charmousis Christos
Dufaux Jean Francois
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