Strings in Singular Time-Dependent Backgrounds

Abstract

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.

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

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Cited by in corpus (23)

• The Black Hole Singularity in AdS/CFT
• A Matrix Big Bang
• Time-dependent Orbifolds and String Cosmology
• Cosmological Perturbations in a Big Crunch/Big Bang Space-time
• Time Dependent Cosmologies and Their Duals
• A Solvable Irrelevant Deformation of $Ad{S}_3/CF{T}_2$
• Cosmologies with Null Singularities and their Gauge Theory Duals
• pp Wave Big Bangs: Matrix Strings and Shrinking Fuzzy Spheres
• Big Bang Models in String Theory
• Matrix Membrane Big Bangs and D-brane Production
• A Matrix Model for the Null-Brane
• Global Fluctuation Spectra in Big Crunch/Big Bang String Vacua
• A Short Review of Time Dependent Solutions and Space-like Singularities in String Theory
• Beyond the Singularity of the 2-D Charged Black Hole
• A Wave-function for Stringy Universes
• String spectra near some null cosmological singularities
• The Kahler Cone as Cosmic Censor
• D-Brane solutions in a light-like linear dilaton background
• The string wave function across a Kasner singularity
• Power-law singularities in string theory and M-theory
• On the Resolution of the Time-Like Singularities in Reissner-Nordstrom and Negative-Mass Schwarzschild
• Quantum cosmology of the brane universe
• On Thermodynamical Properties of Some Coset CFT Backgrounds