PIRSA:14120038

The Incompleteness of HRT

(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}}
          }
DOI 10.48660/14120038
Collection
Talk Type Scientific Series
Subject

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.