Quantum Resolution of Cosmological Singularities using AdS/CFT

Details Quantum Resolution of Cosmological Singularities using AdS/CFT Quantum Resolution of Cosmological Singularities using AdS/CFT

Nov 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aipc..957..164t&link_type=abstract

PARTICLES, STRINGS, AND COSMOLOGY: 13th International Symposium on Particles, Strings, and Cosmology-PASCOS 2007. AIP Conferenc

Mathematics

Logic

Cosmology, General Properties Of Perturbation Theory, M Theory, String And Brane Phenomenology

Scientific paper

I review recent work with Ben Craps and Thomas Hertog[1] on the quantum resolution of cosmological singularities using the AdS/CFT correspondence. In particular, we study a five dimensional cosmology, showing that one can define a consistent quantum evolution of the dual boundary theory across the classical singularity. An intriguing consequence of the instability, approximate scale-invariance, and asymptotic freedom of the boundary theory is that an approximately scale-invariant spectrum of stress-energy perturbations is generated. I briefly comment on four dimensional generalizations and the implications for cosmological perturbations in the bulk.

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