University of Minnesota
School of Physics & Astronomy

Cosmology Lunchtime Seminar

Monday, November 14th 2016
12:15 pm:
Speaker: Andrew Matas (University of Minnesota)
Subject: Aspects of Massive Gravity

General Relativity can be described as a theory of a massless spin-2 particle (the graviton), whose interactions are local and Lorentz-invariant. It is a fundamental and long-standing question as to whether the graviton may acquire a small mass. Additionally, a small graviton mass can potentially explain cosmic acceleration in a way that avoids a technically unnatural cosmological constant. In this talk, I will describe recent progress in constructing a healthy, non-linear theory of massive gravity. I will also describe observational tests from solar system and from binary pulsar observations.

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