PIRSA:15120022

Video URL

https://pirsa.org/15120022

BMS Symmetry in Three Dimensions

Oblak, B. (2015). BMS Symmetry in Three Dimensions. Perimeter Institute for Theoretical Physics. https://pirsa.org/15120022

Oblak, Blagoje. BMS Symmetry in Three Dimensions. Perimeter Institute for Theoretical Physics, Dec. 08, 2015, https://pirsa.org/15120022 

          @misc{ scivideos_PIRSA:15120022,
            doi = {10.48660/15120022},
            url = {https://pirsa.org/15120022},
            author = {Oblak, Blagoje},
            keywords = {Quantum Gravity},
            language = {en},
            title = {BMS Symmetry in Three Dimensions},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2015},
            month = {dec},
            note = {PIRSA:15120022 see, \url{https://scivideos.org/index.php/pirsa/15120022}}
          }

Blagoje Oblak Université Libre de Bruxelles

Talk numberPIRSA:15120022
DOI10.48660/15120022
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

In this talk I will sketch the relation between unitary representations of the BMS3 group and three-dimensional, asymptotically flat gravity. More precisely, after giving an exact definition of the BMS group in three dimensions, I will argue that its unitary representations are classified by orbits of CFT stress tensors under conformal transformations. These stress tensors, in turn, can be interpreted as Bondi mass aspects for asymptotically flat metrics. I will also show how one can compute characters of the BMS3 group, which coincide with suitable gravitational one-loop partition functions