Shortcuts in Domain Walls and the Horizon Problem
arXiv:hep-th/0209101 · doi:10.1103/PhysRevD.67.084012
Abstract
We consider a dynamical membrane world in a space-time with scalar bulk matter described by domain walls. Using the solutions to Einstein field equations and Israel conditions we investigate the possibility of having shortcuts for gravitons leaving the wall and returning subsequently. As it turns out, they usually appear under mild conditions. In the comparison with photons following a geodesic inside the brane, we verify that shortcuts exist. For some Universes they are small, but there are cases where shortcuts are effective. In these cases we expect them to play a significant role in the solution of the horizon problem.
22 pages, 14 figures. Version to appear in Phys. Rev. D
References in corpus (22)
- A Flat Universe from High-Resolution Maps of the Cosmic Microwave Background Radiation
- Non-conventional cosmology from a brane-universe
- Brane cosmological evolution in a bulk with cosmological constant
- The Pre-Big Bang Scenario in String Cosmology
- Cosmological Expansion in the Presence of an Extra Dimension
- Cosmology of One Extra Dimension with Localized Gravity
- Dynamic Dilatonic Domain Walls
- Cosmological implications of the MAXIMA-I high resolution Cosmic Microwave Background anisotropy measurement
- A measurement of Omega from the North American test flight of BOOMERANG
- Gravitational Lorentz Violations and Adjustment of the Cosmological Constant in Asymmetrically Warped Spacetimes
- Cosmological Challenges in Theories with Extra Dimensions and Remarks on the Horizon Problem
- Can Geodesics in Extra Dimensions Solve the Cosmological Horizon Problem?
- Homogeneity, Flatness and "Large" Extra Dimensions
- Large Extra Dimensions and Cosmological Problems
- Quantum cosmology, inflationary brane-world creation and dS/CFT correspondence
- Causality of the brane universe
- Friedmann equation and Cardy formula correspondence in brane universes
- Shortcuts in the fifth dimension
- Transdimensional physics and inflation
- The shortest cut in brane cosmology
- Shortcuts for Graviton Propagation in a Six Dimensional Brane World Model
- Stabilization and radion in de Sitter brane-world
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