Dilaton-driven brane inflation in type IIB string theory

2000/04/30 by Jin Young Kim · 2 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Galaxies: Formation, Evolution, Phenomena #hep-th

paper · pdf · doi:10.1103/physrevd.62.065002

published as Phys.Rev. D62 (2000) 065002 · typos corrected, reference added, version to appear in Physical Review D

arxiv created 2000/06/20 · openalex publication_date 2000/08/04 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We consider the cosmological evolution of the three-brane in the background of type IIB string theory. For two different backgrounds which give a nontrivial dilaton profile we have derived the Friedmann-like equations. These give the cosmological evolution which is similar to the one by matter density on the universe brane. The effective density blows up as we move towards the singularity showing the initial singularity problem. The analysis shows that when there is an axion field in the ambient space the recollapsing of the universe occurs faster compared with the case without an axion field.

Citations

• Do we live inside a domain wall?
• Non-conventional cosmology from a brane universe
• Large Mass Hierarchy from a Small Extra Dimension
• A small cosmological constant from a large extra dimension

Cited by

• Cosmological evolution of a brane universe in a type 0 string background
• Probe branes dynamics: exact solutions in general backgrounds