PIRSA:08110044

Video URL

https://pirsa.org/08110044

Who Is The Inflaton?

Brout, R. (2008). Who Is The Inflaton?. Perimeter Institute for Theoretical Physics. https://pirsa.org/08110044

Brout, Robert. Who Is The Inflaton?. Perimeter Institute for Theoretical Physics, Nov. 18, 2008, https://pirsa.org/08110044 

          @misc{ scivideos_PIRSA:08110044,
            doi = {10.48660/08110044},
            url = {https://pirsa.org/08110044},
            author = {Brout, Robert},
            keywords = {Cosmology},
            language = {en},
            title = {Who Is The Inflaton?},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2008},
            month = {nov},
            note = {PIRSA:08110044 see, \url{https://scivideos.org/pirsa/08110044}}
          }

Robert Brout Université Libre de Bruxelles

Talk numberPIRSA:08110044
DOI10.48660/08110044
Source RepositoryPIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

It is argued that space-time is discretized on the basis of the gravitational interactions among the degrees of freedom of quantum fields.Configurations of fields fall into 2 classes,propagating (cisplanckian in length scale) and those that are transplanckian, sequestered in the space-time that is localized in discrete elements.Only the former determine the hubble expansion parameter and are therefore used to construct the inflaton.The model used for discretization is Sorkin\'s causet construction.From this the covariant massy Klein Gordon equation can be rationalized.The mass is encoded as an exchange matrix element between the sequestered (bound) degrees of freedom and those that propagate,presumably by tunneling thereby exlaining why m<<1.