Brane Worlds, String Cosmology, and AdS/CFT
暂无分享,去创建一个
Using the thin-shell formalism we discuss the motion of domain walls in de Sitter and anti--de Sitter (AdS) time-dependent bulks. This motion results in a dynamics for the brane scale factor. We show that in the case of a clean brane the scale factor describes both singular and nonsingular universes, with phases of contraction and expansion. These phases can be understood as quotients of AdS spacetime by a discrete symmetry group. We discuss this effect in some detail, and suggest how the AdS/CFT correspondence could be applied to obtain a nonperturbative description of brane-world string cosmology.
[1] George F. R. Ellis,et al. The Large Scale Structure of Space-Time , 2023 .
[2] Stefan Friedl. Algebraic topology , 2020, Graduate Studies in Mathematics.
[3] Arnold Neumaier,et al. Introduction to Numerical Analysis , 2001 .
[4] E. Witten. Quantum Gravity In De Sitter Space , 2001, hep-th/0106109.