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PIRSA:16090059

Video URL

https://pirsa.org/16090059

Integrability and null canonical gravity

          @misc{ scivideos_PIRSA:16090059,
            doi = {10.48660/16090059},
            url = {https://pirsa.org/16090059},
            author = {Reisenberger, Michael},
            keywords = {Quantum Gravity},
            language = {en},
            title = {Integrability and null canonical gravity},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2016},
            month = {sep},
            note = {PIRSA:16090059 see, \url{https://scivideos.org/index.php/pirsa/16090059}}
          }

Michael Reisenberger Universidad de la Republica Uruguay

Talk numberPIRSA:16090059
DOI10.48660/16090059
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

Constraint free initial data can be given for vacuum general relativity on a pair of intersecting null hypersurfaces. Moreover, the Poisson algebra of a set of such free null initial data has been found,but it has an unfamiliar structure, making its quantization difficult. We note that this algebra is essentially a sum of an infinite number of copies of the Poisson algebras of cylindrically symmetric gravity. Using the fact that cylindrically symmetric gravity is integrable we find new free data with an algebra more amenable to quantization.