PIRSA:20090001

Holography of information from semiclassical gravity

Raju, S. (2020). Holography of information from semiclassical gravity. Perimeter Institute. https://pirsa.org/20090001

Raju, Suvrat. Holography of information from semiclassical gravity. Perimeter Institute, Sep. 17, 2020, https://pirsa.org/20090001 

          @misc{ pirsa_PIRSA:20090001,
            doi = {10.48660/20090001},
            url = {https://pirsa.org/20090001},
            author = {Raju, Suvrat},
            keywords = {Quantum Gravity},
            language = {en},
            title = {Holography of information from semiclassical gravity},
            publisher = {Perimeter Institute},
            year = {2020},
            month = {sep},
            note = {PIRSA:20090001 see, \url{https://pirsa.org}}
          }

Suvrat Raju

Talk number
PIRSA:20090001
Collection
Talk Type
Subject
Abstract

We will argue that even with semiclassical gravity, it can be shown that a copy of  all the information on a Cauchy slice resides near the boundary of the slice. We will first demonstrate this in asymptotically global AdS, and then in four-dimensional asymptotically flat space. We will then describe a physical protocol that can be used to verify this property at low-energies and within perturbation theory. This property of gravity implies that information about the black-hole interior is always present "outside" the black hole, which leads to a fresh perspective on the information paradox.

References:
1) https://arxiv.org/abs/2002.02448
2) https://arxiv.org/abs/2008.01740