2002/08/31 by Timon Boehm, Robert Brandenberger · 5 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Brane #Brane cosmology #Context (archaeology) #Cosmology #Cosmology and Gravitation Theories #Dilaton #Duality (order theory) #Heterotic string theory #Mathematical physics #Noncommutative and Quantum Gravity Theories #Particle physics #Physics #Quantum mechanics #String theory #Superstring theory #Supersymmetry #T-duality #Theoretical physics #hep-ph #hep-th
paper · pdf · doi:10.1088/1475-7516/2003/06/008
published as JCAP 0306 (2003) 008 · 8 pages, Appendix added
arxiv created 2003/04/22 · openalex publication_date 2003/06/24 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
In the context of homogeneous and isotropic superstring cosmology, the T-duality symmetry of string theory has been used to argue that for a background space–time described by dilaton gravity with strings as matter sources, the cosmological evolution of the Universe will be nonsingular. In this paper we discuss how T-duality extends to brane gas cosmology, an approximation in which the background space–time is again described by dilaton gravity with a gas of branes as a matter source. We conclude that the arguments for non-singular cosmological evolution remain valid.