Strings in Singular Time-Dependent Backgrounds

Details Strings in Singular Time-Dependent Backgrounds Strings in Singular Time-Dependent Backgrounds

2003-05-16

arxiv.org/abs/hep-th/0305137v1

Fortsch.Phys. 51 (2003) 805-823

Physics

High Energy Physics

High Energy Physics - Theory

22 pages, 4 figures, Contribution to the proceedings of Symposium Ahrenshoop, August 2002

Scientific paper

10.1002/prop.200310102

We review the construction of time-dependent backgrounds with space-like singularities. We mainly consider exact CFT backgrounds. The algebraic and geometric aspects of these backgrounds are discussed. Physical issues, results and difficulties associated with such systems are reviewed. Finally, we present some new results: a two dimensional cosmology in the presence of an Abelian gauge field described within a family of (SL(2)xU(1))/(U(1)xZ) quotient CFTs.

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