Brane Gas Inflation

Abstract

We consider the brane gas picture of the early universe. At later stages, when there are no winding modes and the background is free to expand, we show that a moving 3-brane, which we identify with our universe, can inflate even though it is radiation-dominated. The crucial ingredients for successful inflation are the coupling to the dilaton and the equation of state of the bulk. If we suppose the brane initially forms in a collision of higher-dimensional branes, then the spectrum of primordial density fluctuations naturally has a thermal origin.

4 pages, 1 figure

References in corpus (3)

• The Inflationary Brane-Antibrane Universe
• Assisted inflation via tachyon condensation
• Inflation from D-\bar{D} brane annihilation

Cited by in corpus (10)

• String Gas Cosmology
• Aspects of String-Gas Cosmology at Finite Temperature
• D-branes in Standard Model building, Gravity and Cosmology
• Inflation and Brane Gases
• Brane Gas Cosmology, M-theory and Little String Theory
• Late time evolution of brane gas cosmology and compact internal dimensions
• Mirage Cosmology in M-theory
• Stabilization of the Extra Dimensions in Brane Gas Cosmology with Bulk Flux
• Mirage cosmology with an unstable probe D3-brane
• Colliding Branes and Formation of Spacetime Singularities