PIRSA:12110061

Video URL

https://pirsa.org/12110061

Massive gravitons, the cosmological constant and new directions in gravity

(2012). Massive gravitons, the cosmological constant and new directions in gravity. Perimeter Institute for Theoretical Physics. https://pirsa.org/12110061

Massive gravitons, the cosmological constant and new directions in gravity. Perimeter Institute for Theoretical Physics, Nov. 14, 2012, https://pirsa.org/12110061 

          @misc{ scivideos_PIRSA:12110061,
            doi = {10.48660/12110061},
            url = {https://pirsa.org/12110061},
            author = {},
            keywords = {Cosmology},
            language = {en},
            title = {Massive gravitons, the cosmological constant and new directions in gravity},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2012},
            month = {nov},
            note = {PIRSA:12110061 see, \url{https://scivideos.org/pirsa/12110061}}
          }
Talk numberPIRSA:12110061
DOI10.48660/12110061
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

The solutions to the cosmological constant problems may involve modifying the very long-range dynamics of gravity by adding new degrees of freedom.  As an example of a conservative and minimal such modification, we consider the possibility that the graviton has a very small mass.  Massive gravity has received renewed interest due to recent advances which have resolved its traditional problems.  This kind of modification has some peculiar and unexpected features, and it points us towards a universe which looks quite unfamiliar.
Support for this colloquium is provided by The Templeton Frontiers Program.