Speaker
Dr
Tina Kahniashvili
(Carnegie Mellon University)
Description
The cosmological consequences of the deRham-Gabadadze-Tolley
(dRGT) massive gravity model will be discussed. In the
framework of dRGT model the today accelerated expansion of the
universe is governed by a non-zero mass of graviton that is
determined by the today value of the Hubble parameter $m_g \sim
H_)$. In order to recover the isotropic background solutions at
the late stages of the universe expansion as well as the
stability of perturbations the quasidilaton extensions of the
dRGT model have been developed. In this talk I will be focused
on gravittional waves dynamics in the dRGT model and the
corresponding CMB signatures such as temperature and
polarization anisotropies.
Primary author
Dr
Tina Kahniashvili
(Carnegie Mellon University)
