OKC/Nordita High-Energy Physics Theory seminar

Cosmological aspects of massive gravity (UNUSUAL DATE)

by Tina Kahniashvili (Carnegie Mellon University (USA) & Ilia State University (Georgia))

122:026 ()


I will discuss cosmological aspects of massive gravity theories such as graviton mass signatures on the cosmic microwave background (CMB) temperature and polarization anisotropies. In particular, I will refer to a reduction of large scale power of the CMB temperature anisotropies that might be due to the non-zero graviton mass. In the second part of my talk I will analyze in detail consequences of extended quasidilaton theory and derive constraints on parameters of this theory.