PIRSA:09070009 Conference Quantum Fields and Strings

DOI10.48660/09070009

Conference/School: Holographic Cosmology Workshop - 2009

Bernamonti, A. (2009). Multi-Trace Deformations of AdS/CFT and Spherical D-branes. Perimeter Institute. https://pirsa.org/09070009

Bernamonti, Alice. Multi-Trace Deformations of AdS/CFT and Spherical D-branes. Perimeter Institute, Jul. 09, 2009, https://pirsa.org/09070009 

@misc{ pirsa_PIRSA:09070009,
  doi = {10.48660/09070009},
  url = {https://pirsa.org/09070009},
  author = {Bernamonti, Alice},
  keywords = {Quantum Fields and Strings, Particle Physics, Cosmology},
  language = {en},
  title = {Multi-Trace Deformations of AdS/CFT and Spherical D-branes},
  publisher = {Perimeter Institute},
  year = {2009},
  month = {jul},
  note = {PIRSA:09070009 see, \url{https://pirsa.org}}
}

Abstract

It has been shown by Hertog and Horowitz that certain AdS boundary conditions allow non-singular initial conditions to evolve into a Big Crunch. To study this kind of cosmological singularities, one can use the dual quantum field theory, where the singularity is manifested by the presence of a multi-trace potential unbounded below. Recently, Craps, Hertog and Turok have proposed two specific models of this type to study the possibility of a Big Crunch/Big Bang transition. For both models, I will provide a D-brane interpretation of the unbounded potential. In particular, I will show that the AdS boundary conditions of interest cause spherical D-branes to be pushed to the boundary of AdS, and that the corresponding potential agrees with the multi-trace deformation of the boundary field theory

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