PIRSA:13120005

Video URL

https://pirsa.org/13120005

Partially Massless Gravity

(2013). Partially Massless Gravity. Perimeter Institute for Theoretical Physics. https://pirsa.org/13120005

Partially Massless Gravity. Perimeter Institute for Theoretical Physics, Dec. 11, 2013, https://pirsa.org/13120005 

          @misc{ scivideos_PIRSA:13120005,
            doi = {10.48660/13120005},
            url = {https://pirsa.org/13120005},
            author = {},
            keywords = {Cosmology},
            language = {en},
            title = {Partially Massless Gravity},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2013},
            month = {dec},
            note = {PIRSA:13120005 see, \url{https://scivideos.org/pirsa/13120005}}
          }
Talk numberPIRSA:13120005
DOI10.48660/13120005
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

On de Sitter space, there exists a special value for the mass of a graviton for which the linear theory propagates 4 rather than 5 degrees of freedom. If a fully non-linear version of the theory exists and can be coupled to known matter, it would have interesting properties and could solve the cosmological constant problem. I will describe evidence for and obstructions to the existence of such a theory.