Brane worlds, string cosmology, and AdS/CFT

Journal Article · Mon Oct 15 00:00:00 EDT 2001 · Physical Review D

DOI:https://doi.org/10.1103/PhysRevD.64.084027· OSTI ID:40277426

Anchordoqui, Luis; Edelstein, Jose; Nunez, Carlos; Bergliaffa, Santiago Perez; Schvellinger, Martin; Trobo, Marta; Zyserman, Fabio

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.

• Research Organization: Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
• Sponsoring Organization: (US)
• DOE Contract Number: FC02-94ER40818
• OSTI ID: 40277426
• Journal Information: Physical Review D, Vol. 64, Issue 8; Other Information: DOI: 10.1103/PhysRevD.64.084027; Othernumber: PRVDAQ000064000008084027000001; 095120PRD; PBD: 15 Oct 2001; ISSN 0556-2821
• Publisher: The American Physical Society
• Country of Publication: United States
• Language: English

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