de Sitter Spacetimes from Warped Compactifications of IIB String Theory

Details de Sitter Spacetimes from Warped Compactifications of IIB String Theory de Sitter Spacetimes from Warped Compactifications of IIB String Theory

2001-12-10

arxiv.org/abs/hep-th/0112079v3

Phys.Lett.B534:147-154,2002

Physics

High Energy Physics

High Energy Physics - Theory

10 pages, LaTeX, references added and minor changes made

Scientific paper

10.1016/S0370-2693(02)01713-6

We continue our study of codimension two solutions of warped space-time varying compactifications of string theory. In this letter we discuss a non-supersymmetric solution of the classical type IIB string theory with de Sitter gravity on a codimension two uncompactified part of spacetime. A non-zero positive value of the cosmological constant is induced by the presence of non-trivial stringy moduli, such as the axion-dilaton system for the type IIB string theory. Furthermore, the naked singularity of the codimension two solution is resolved by the presence of a small but non-zero cosmological constant.

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