PIRSA:20040031

Video URL

https://pirsa.org/20040031

Replica wormholes and the black hole information paradox

Shaghoulian, E. (2020). Replica wormholes and the black hole information paradox . Perimeter Institute for Theoretical Physics. https://pirsa.org/20040031

Shaghoulian, Edgar. Replica wormholes and the black hole information paradox . Perimeter Institute for Theoretical Physics, Apr. 21, 2020, https://pirsa.org/20040031 

          @misc{ scivideos_PIRSA:20040031,
            doi = {10.48660/20040031},
            url = {https://pirsa.org/20040031},
            author = {Shaghoulian, Edgar},
            keywords = {Quantum Fields and Strings},
            language = {en},
            title = {Replica wormholes and the black hole information paradox },
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2020},
            month = {apr},
            note = {PIRSA:20040031 see, \url{https://scivideos.org/pirsa/20040031}}
          }

Edgar Shaghoulian Cornell University

Talk numberPIRSA:20040031
DOI10.48660/20040031
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

The information paradox can be realized in two-dimensional models of gravity. In this setting, we show that the large discrepancy between the von Neumann entropy as calculated by Hawking and the requirement of unitarity is fixed by including new saddles in the gravitational path integral. These saddles arise in the replica method as wormholes connecting different copies of the black hole. We will discuss their appearance both in asymptotically AdS and asymptotically flat theories of gravity.