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arXiv · 1503.08838

Further Holographic Investigations of Big Bang Singularities

Netta Engelhardt·Thomas Hertog·Gary T. Horowitz
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Abstract

We further explore the quantum dynamics near past cosmological singularities in anisotropic Kasner-AdS solutions using gauge/gravity duality. The dual description of the bulk evolution involves N=4 super Yang-Mills on the contracting branch of an anisotropic de Sitter space and is well defined. We compute two-point correlators of Yang-Mills operators of large dimensions using spacelike geodesics anchored on the boundary. The correlator between two points separated in a direction with negative Kasner exponent p always exhibits a pole at horizon scales, in any dimension, which we interpret as a dual signature of the classical bulk singularity. We find evidence that the pole is absent at finite coupling in the dual field theory, indicating the singularity is resolved.

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Netta Engelhardt, Thomas Hertog, Gary T. Horowitz. 2015-03-30. Further Holographic Investigations of Big Bang Singularities. https://arxiv.org/abs/1503.08838

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