Cosmological Rescaling through Warped Space

Details Cosmological Rescaling through Warped Space Cosmological Rescaling through Warped Space

2004-06-22

arxiv.org/abs/hep-th/0406198v2

Phys.Rev. D71 (2005) 026008

Physics

High Energy Physics

High Energy Physics - Theory

12 pages, 2 figures; v2, PRD version, comments and references added

Scientific paper

10.1103/PhysRevD.71.026008

We discuss a scenario where at least part of the homogeneity on a brane world can be directly related to the hierarchy problem through warped space. We study the dynamics of an anti-D3-brane moving toward the infrared cut-off of a warped background. After a region described by the DBI action, the self-energy of the anti-D3-brane will dominate over the background. Then the world-volume scale of the anti-D3-brane is no longer comoving with the background geometry. After it settles down in the infrared end, the world-volume inhomogeneity will appear, to a Poincare observer, to be stretched by an exponentially large ratio. This ratio is close to that of the hierarchy problem between the gravitational and electroweak scales.

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