Cosmological Rescaling through Warped Space
Abstract
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.
Keywords
Cite
@article{arxiv.hep-th/0406198,
title = {Cosmological Rescaling through Warped Space},
author = {Xingang Chen},
journal= {arXiv preprint arXiv:hep-th/0406198},
year = {2009}
}
Comments
12 pages, 2 figures; v2, PRD version, comments and references added