PIRSA:23110086

Video URL

https://pirsa.org/23110086

Can one region of space encode another?

Cummings, C. (2023). Can one region of space encode another?. Perimeter Institute for Theoretical Physics. https://pirsa.org/23110086

Cummings, Charlie. Can one region of space encode another?. Perimeter Institute for Theoretical Physics, Nov. 28, 2023, https://pirsa.org/23110086 

          @misc{ scivideos_PIRSA:23110086,
            doi = {10.48660/23110086},
            url = {https://pirsa.org/23110086},
            author = {Cummings, Charlie},
            keywords = {Quantum Fields and Strings},
            language = {en},
            title = {Can one region of space encode another?},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2023},
            month = {nov},
            note = {PIRSA:23110086 see, \url{https://scivideos.org/pirsa/23110086}}
          }

Charlie Cummings University of Pennsylvania

Talk numberPIRSA:23110086
DOI10.48660/23110086
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

Using a novel version of the gravitational path integral for compact spatial regions at a moment of time symmetry, I argue that a region of space can encode a larger one. In particular, I show that the entanglement entropy of a region of space equals the area of the boundary of the smallest region that contains it. The key insight is to include the effects of the gravitational edge modes associated with the region in the path integral. This result is consistent with a recent conjecture by Bousso and Penington.

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Zoom link https://pitp.zoom.us/j/93301151464?pwd=Z2t5QlpUQ3hoaEkwQlFZS2tITGpEQT09