Branes and inflationary cosmology

2001/11/08 by Bumseok Kyae, Qaisar Shafi · 6 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Noncommutative and Quantum Gravity Theories #hep-ph #hep-th

paper · pdf · doi:10.1016/s0370-2693(02)01156-5

published as Phys.Lett.B526:379-387,2002 · 14 pages, LaTeX, 4 eps figures

arxiv created 2001/11/08 · openalex publication_date 2002/02/01 · arxiv updated 2011/05/12 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We discuss a brane based inflationary scenario in which an initially non-supersymmetric configuration involving a D4 brane is dynamically transformed into a supersymmetric one in a background space–time geometry determined by a stack of D6 branes. Inflation is realized in the effective four-dimensional theory and ends after reaching a stable BPS configuration. The scalar spectral index turns out to be 0.98. Under some simplifying assumption the reheat temperature, Hubble constant and the string scale are estimated to be of order 108 GeV, 1012 GeV and 1016 GeV, respectively.

Citations

• Dirichlet Branes and Ramond-Ramond Charges
• Particle Physics Models of Inflation and the Cosmological Density Perturbation

Cited by

• Towards inflation in string theory
• Lectures on string theory and cosmology
• Sneutrino Condensate Source for Density Perturbations, Leptogenesis, and Low Reheat Temperature
• Initial conditions for brane inflation
• Branonium
• D-brane dynamics and creations of open and closed strings after recombination