PIRSA:16030119

Aspects of Galileon Cosmology

Davis, A. (2016). Aspects of Galileon Cosmology. Perimeter Institute. https://pirsa.org/16030119

Davis, Anne. Aspects of Galileon Cosmology. Perimeter Institute, Mar. 22, 2016, https://pirsa.org/16030119 

          @misc{ pirsa_PIRSA:16030119,
            doi = {10.48660/16030119},
            url = {https://pirsa.org/16030119},
            author = {Davis, Anne},
            keywords = {Cosmology},
            language = {en},
            title = {Aspects of Galileon Cosmology},
            publisher = {Perimeter Institute},
            year = {2016},
            month = {mar},
            note = {PIRSA:16030119 see, \url{https://pirsa.org}}
          }

Anne Davis

University of Cambridge

Talk number
PIRSA:16030119
Collection
Talk Type
Subject
Abstract

I will discuss the cosmology of galileon models with a Minkowski limit and discuss whether they can account for the currently observed cosmological model. The full galileon model predicts the speed of gravitational waves to be different from that of photons. I will discuss this and compare with observations. I will then discuss a subdominant galileon model which is compatible. Finally I will discuss the shape dependence of screening in galileon models, showing that the fifth force is unscreened for planar objects.