CFT on the Brane with a Reissner-Nordstrom-de Sitter Twist

Details CFT on the Brane with a Reissner-Nordstrom-de Sitter Twist CFT on the Brane with a Reissner-Nordstrom-de Sitter Twist

2001-11-21

arxiv.org/abs/hep-th/0111182v2

Physics

High Energy Physics

High Energy Physics - Theory

22 pages, Latex; references added and cosmetic changes

Scientific paper

We consider a brane universe in a Reissner-Nordstrom-de Sitter background spacetime of arbitrary dimensionality. It is shown that the brane evolution is described by generalized Friedmann equations for radiative matter along with a stiff-matter contribution. On the basis of the (conjectured) dS/CFT correspondence, we identify various thermodynamic properties of the brane. It is then demonstrated that, when the brane crosses the de Sitter cosmological horizon, the CFT thermodynamics and Friedmann-like equations coincide. Moreover, the CFT entropy is shown to be expressible in a generalized Cardy-Verlinde form. Finally, we consider the holographic entropy bounds in this scenario.

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