Journal of High Energy Physics

, 2010:17 | Cite as

Particle production near an AdS crunch

Open Access


We numerically study the dual field theory evolution of five-dimensional asymptotically anti-de Sitter solutions of supergravity that develop cosmological singularities. The dual theory is an unstable deformation of the \( \mathcal{N} = 4 \) gauge theory on \( \mathbb{R} \times {S^3} \), and the big crunch singularity in the bulk occurs when a boundary scalar field runs to infinity. Consistent quantum evolution requires one imposes boundary conditions at infinity. Modeling these by a steep regularization of the scalar potential, we find that when an initially nearly homogeneous wavepacket rolls down the potential, most of the potential energy of the initial configuration is converted into gradient energy during the first oscillation of the field. This indicates there is no transition from a big crunch to a big bang in the bulk for dual boundary conditions of this kind.


AdS-CFT Correspondence Spacetime Singularities 


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© The Author(s) 2010

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Authors and Affiliations

  1. 1.APC, CNRS, Université Paris-DiderotParis Cedex 13France

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