PIRSA:21110027

Video URL

https://pirsa.org/21110027

2-Groups in quantum gravity

Laudonio, M. (2021). 2-Groups in quantum gravity. Perimeter Institute for Theoretical Physics. https://pirsa.org/21110027

Laudonio, Matteo. 2-Groups in quantum gravity. Perimeter Institute for Theoretical Physics, Nov. 18, 2021, https://pirsa.org/21110027 

          @misc{ scivideos_PIRSA:21110027,
            doi = {10.48660/21110027},
            url = {https://pirsa.org/21110027},
            author = {Laudonio, Matteo},
            keywords = {Quantum Gravity},
            language = {en},
            title = {2-Groups in quantum gravity},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2021},
            month = {nov},
            note = {PIRSA:21110027 see, \url{https://scivideos.org/index.php/pirsa/21110027}}
          }

Matteo Laudonio

Talk numberPIRSA:21110027
DOI10.48660/21110027
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

Quantum groups are the proper tool to describe quantum gravity in three dimensions. Several arguments suggest that 2-groups should be used to formulate four dimensional quantum gravity. I will review these motivations and will discuss in particular how 2-groups can be used to extend the definition of a phase space associated to a triangulation or to modify the notion of group field theory to generate topological models. I will also highlight how the kappa Poincaré deformation arises in the 2-group context.