Speaker
Tina Kahniashvili
(Carnegie Mellon University (USA) & Ilia State University (Georgia))
Description
Recent detection of stochastic gravitational wave background by pulsar timing arrays (PTAs) missions opens a new window of testing fundamental physics laws at energy scales far beyond what is reached by particle physics experiments and/or by astrophysical observations; In my talks I will addresses some puzzles in our understanding of the Universe nature (its past, present day, and future), that motivate to consider extensions of the standard model of cosmology and particle physics; In particular, I will discuss the PTAs data in the context of massive gravity and reconstructing the earliest moments of the Universe expansion.
