PIRSA:14120038 Scientific Series Strong Gravity

DOI10.48660/14120038

Series: Strong Gravity

(2014). The Incompleteness of HRT. Perimeter Institute. https://pirsa.org/14120038

The Incompleteness of HRT. Perimeter Institute, Dec. 11, 2014, https://pirsa.org/14120038 

@misc{ pirsa_PIRSA:14120038,
  doi = {10.48660/14120038},
  url = {https://pirsa.org/14120038},
  author = {},
  keywords = {Strong Gravity},
  language = {en},
  title = {The Incompleteness of HRT},
  publisher = {Perimeter Institute},
  year = {2014},
  month = {dec},
  note = {PIRSA:14120038 see, \url{https://pirsa.org}}
}

Abstract

In AdS/CFT, the HRT prescription relates the entanglement entropy of a region of a CFT to the area of an extremal surface in the dual AdS spacetime.  But there exists a class of spacetimes in which the HRT prescription is ill-defined.  These spacetimes consist of planar AdS wormholes containing an inflating region.  I will introduce these so-called AdS-dS-wormholes, discuss how the HRT prescription fails in them, and suggest possible modifications to remedy the problem.

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