PIRSA:15040102

Subluminal Vainshtein Screening in Massive Gravity

Berezhiani, L. (2015). Subluminal Vainshtein Screening in Massive Gravity. Perimeter Institute. https://pirsa.org/15040102

Berezhiani, Lasha. Subluminal Vainshtein Screening in Massive Gravity. Perimeter Institute, Apr. 09, 2015, https://pirsa.org/15040102 

          @misc{ pirsa_PIRSA:15040102,
            doi = {10.48660/15040102},
            url = {https://pirsa.org/15040102},
            author = {Berezhiani, Lasha},
            keywords = {Cosmology},
            language = {en},
            title = {Subluminal Vainshtein Screening in Massive Gravity},
            publisher = {Perimeter Institute},
            year = {2015},
            month = {apr},
            note = {PIRSA:15040102 see, \url{https://pirsa.org}}
          }

Lasha Berezhiani University of Pennsylvania

Talk numberPIRSA:15040102
DOI10.48660/15040102
Collection
Talk Type Conference
Subject

Abstract

I will discuss the Vainshtein mechanism in massive gravity. I will show that the spherically symmetric backgrounds that were believed to have superluminal sound speed are in fact unstable. Instead, there is a new class of phenomenologically relevant solutions with stable and subluminal perturbations.