2023-05-05 11:00  Online

Primordial standard clocks and cosmological collider physics

Dr. Xingang Chen

In this talk we will introduce two research programs that aim to comprehend the physics of the primordial universe, leading up to the Big Bang universe. We will do so by studying the properties of primordial density perturbations that seeded the structure of the universe. In the primordial standard clocks program, we demonstrate how a signature of massive fields directly encodes the function a(t) [...]