Brane Dynamics, the Polytropic Gas and Conformal Bulk Fields

Details Brane Dynamics, the Polytropic Gas and Conformal Bulk Fields Brane Dynamics, the Polytropic Gas and Conformal Bulk Fields

2003-04-30

arxiv.org/abs/hep-th/0304266v2

Phys.Lett. B568 (2003) 153-159

Physics

High Energy Physics

High Energy Physics - Theory

14 pages, latex, no figures. Some corrections introduced to clarify the analysis in the text. Revised version to appear in Phy

Scientific paper

10.1016/j.physletb.2003.06.003

We consider in the Randall-Sundrum scenario the dynamics of a spherically symmetric 3-brane world when matter fields exist in the bulk. We determine exact 5-dimensional solutions which localize gravity near the brane and describe the dynamics of homogeneous polytropic matter on the brane. We show that these geometries are associated with a well defined conformal class of bulk matter fields. We analyze the effective polytropic dynamics on the brane identifying conditions which define it as singular or as globally regular.

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