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PIRSA:15040102

Subluminal Vainshtein Screening in Massive Gravity

APA

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

Talk numberPIRSA:15040102
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.