PIRSA:13110049

Finite regions, spherical entanglement, and quantum gravity

APA

Haggard, H. (2013). Finite regions, spherical entanglement, and quantum gravity. Perimeter Institute. https://pirsa.org/13110049

MLA

Haggard, Hal. Finite regions, spherical entanglement, and quantum gravity. Perimeter Institute, Nov. 14, 2013, https://pirsa.org/13110049

BibTex

          @misc{ pirsa_13110049,
            doi = {},
            url = {https://pirsa.org/13110049},
            author = {Haggard, Hal},
            keywords = {Quantum Gravity},
            language = {en},
            title = {Finite regions, spherical entanglement, and quantum gravity},
            publisher = {Perimeter Institute},
            year = {2013},
            month = {nov},
            note = {PIRSA:13110049 see, \url{https://pirsa.org}}
          }
          

Abstract

An exciting frontier in physics is to understand the quantum nature of gravitation in finite regions of spacetime. Study of these regions from ``below'', that is, by studying the quantum geometry of finite regions emerging from loop gravity and spin networks has recently resulted in a new road to the quantization of volume and to evidence that there is a robust gap in the volume spectrum. In this talk I will complement these results with recent work on conformal field theories in a particular finite region, a spherical ball of space. This new view afforded from ``above" gives insights into entanglement and the Reeh-Schlieder theorem, allows calculation of the entanglement spectrum, and suggests a new route to constructing the Minkowski vacuum out of independent finite regions in quantum gravity.