2006/05/31 by Rashmi R. Nayak, Kamal L. Panigrahi, Sanjay Siwach · 2 citations
Mathematics · Physics and Astronomy · #Big Bang (financial markets) #Black Holes and Theoretical Physics #Brane cosmology #Cosmology #Cosmology and Gravitation Theories #De Sitter universe #Dilaton #Initial singularity #Mathematical analysis #Mathematics #Noncommutative and Quantum Gravity Theories #Particle physics #Physics #Quantum gravity #Quantum mechanics #Relationship between string theory and quantum field theory #Singularity #String (physics) #String cosmology #String theory #Supergravity #Supersymmetry #Supersymmetry breaking #Theoretical physics #Type I string theory #Universe #hep-th
paper · pdf · doi:10.1016/j.physletb.2006.07.057
published as Phys.Lett.B640:214-218,2006 · 11 pages, a typo is fixed in eqn 20. To appear in Phys. Lett. B
arxiv created 2006/07/29 · openalex publication_date 2006/08/08 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
A class of time dependent pp-waves with NS–NS flux in type IIA string theory is considered. The background preserves 1/4 supersymmetry and may provide a toy model of Big Bang cosmology with nontrivial flux. At the Big Bang singularity in early past, the string theory is strongly coupled and matrix string model can be used to describe the dynamics. We also construct some time dependent supergravity solutions for D-branes and analyze their supersymmetry properties.