Extra dimensions, warped compactifications and cosmic acceleration

Abstract

We report on explicit cosmological solutions within the framework of an inflating de Sitter brane embedded in five- and ten-dimensional bulk spacetimes. In the specific example we study the brane tension is induced by the curvature related to the expansion of a physical 3+1 spacetime rather than by a bulk cosmological term. In a generic situation with nonzero brane tension, the expansion of the universe accelerates eventually. We also show that inflationary cosmology is possible for a wide class of metrics without violating four- and higher-dimensional null energy condition.

10 pages; major addition, references added, matches published version

References in corpus (9)

• Simple de Sitter Solutions
• Towards Classical de Sitter Solutions in String Theory
• Minimal Simple de Sitter Solutions
• Dark Energy, Inflation and Extra Dimensions
• Inflation from Superstring/M-Theory Compactification with Higher Order Corrections II -- Case of Quartic Weyl Terms --
• Accelerating Universes from Compactification on a Warped Conifold
• Oxidised cosmic acceleration
• Thermodynamic and dynamical stability of Freund-Rubin compactification
• Accelerating universe from warped extra dimensions

Cited by in corpus (15)

• Moduli Stabilization and Cosmology of Type IIB on SU(2)-Structure Orientifolds
• Localization of gravity on a de Sitter thick braneworld without scalar fields
• De Sitter brane-world, localization of gravity, and the cosmological constant
• Universal spin-1/2 fermion field localization on a 5D braneworld
• Warped compactification to de Sitter space
• A no-go for no-go theorems prohibiting cosmic acceleration in extra dimensional models
• Simple cosmological de Sitter solutions on dS${}_4\times Y_6$ spaces
• The warping of extra spaces accelerates the expansion of the universe
• A primer on problems and prospects of dark energy
• Warped compactification on curved manifolds
• Five-Dimensional Black Hole String Backgrounds and Brane Universe Acceleration
• Universe Acceleration in Brane World Models
• Five-dimensional warped product space-time with time-dependent warp factor and cosmology of the four-dimensional universe
• We Probably Live On An Inflating Brane-World
• de Sitter Thin Brane Model