Cosmological evolution with brane-bulk energy exchange

Details Cosmological evolution with brane-bulk energy exchange Cosmological evolution with brane-bulk energy exchange

2002-07-07

arxiv.org/abs/hep-th/0207060v2

JHEP0302:035,2003

Physics

High Energy Physics

High Energy Physics - Theory

20 Pages, JHEP class

Scientific paper

10.1088/1126-6708/2003/02/035

The consequences for the brane cosmological evolution of energy exchange between the brane and the bulk are analysed in detail, in the context of a non-factorizable background geometry with vanishing effective cosmological constant on the brane. A rich variety of brane cosmologies is obtained, depending on the precise mechanism of energy transfer, the equation of state of brane-matter and the spatial topology. An accelerating era is generically a feature of our solutions. In the case of low-density flat universe more dark matter than in the conventional FRW picture is predicted. Spatially compact solutions are found to delay their recollapse.

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