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.

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

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Cited by in corpus (17)

• Observational Signatures and Non-Gaussianities of General Single Field Inflation
• String Cosmology: A Review
• Running Non-Gaussianities in DBI Inflation
• Inflation from Warped Space
• Multi-Throat Brane Inflation
• Duality Cascade in Brane Inflation
• Comparing Infrared Dirac-Born-Infeld Brane Inflation to Observations
• D-brane Dynamics in RR Deformation of NS5-branes Background and Tachyon Cosmology
• Is Brane Inflation Eternal?
• On Power Law Inflation in DBI Models
• A Consistency Relation for Power Law Inflation in DBI models
• On the Slow Roll Expansion for Brane Inflation
• Relativistic D-brane Scattering is Extremely Inelastic
• Fine-Tuning in DBI Inflationary Mechanism
• DBI models for the unification of dark matter and dark energy
• Bridging geometries and potentials in DBI cosmologies
• Reconstructing Single Field Inflationary Actions From CMBR Data