Title: Singularity resolution in cosmologies using AdS/CFT
Abstract:Singularities in general relativity are expected to be cured by a quantum theory of gravity. String theory is a prospective candidate for quantum gravity and holographic correspondences like AdS/CFT, ...Singularities in general relativity are expected to be cured by a quantum theory of gravity. String theory is a prospective candidate for quantum gravity and holographic correspondences like AdS/CFT, that arise from string theory, might shed some light into the nature of singularities. While the theory of gravity might not be tractable near the singularity, the corresponding field theory might be well-behaved. We have come up with a model of cosmology, where curvatures become large at some time, thus, resembling a big crunch, but whose field theory dual remains well-behaved. Our analysis in the field theory indicates that we have a bouncing cosmology with a thermal distribution of radiation, and a possible formation of a small black hole after the bounce.Read More