PIRSA:09120113

Video URL

https://pirsa.org/09120113

Asymptotics of the Ponzano-Regge model for handlebodies

Dowdall, R. (2009). Asymptotics of the Ponzano-Regge model for handlebodies. Perimeter Institute for Theoretical Physics. https://pirsa.org/09120113

Dowdall, Richard. Asymptotics of the Ponzano-Regge model for handlebodies. Perimeter Institute for Theoretical Physics, Dec. 16, 2009, https://pirsa.org/09120113 

          @misc{ scivideos_PIRSA:09120113,
            doi = {10.48660/09120113},
            url = {https://pirsa.org/09120113},
            author = {Dowdall, Richard},
            keywords = {Quantum Gravity},
            language = {en},
            title = {Asymptotics of the Ponzano-Regge model for handlebodies},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2009},
            month = {dec},
            note = {PIRSA:09120113 see, \url{https://scivideos.org/index.php/pirsa/09120113}}
          }

Richard Dowdall University of Nottingham

Talk numberPIRSA:09120113
DOI10.48660/09120113
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

The asymptotic formula for the Ponzano-Regge model amplitude is given for non-tardis triangulations of handlebodies in the limit of large boundary spins. The formula produces a sum over all possible immersions of the boundary triangulation in three dimensional Euclidean space weighted by the cosine of the Regge action evaluated on these immersions. Furthermore the asymptotic scaling registers the existence of flexible immersions.