Gravitational Waves and the Early Universe: Accelerated Expansion, Dynamical Inhomogeneity, and Beyond

Albert Escrivà, "Ripples from the Dark Ages: Gravitational Waves in an Early Matter-Dominated Era"

14 Mar 2026, 11:00

20m

ES635 (Kobayashi-Maskawa Institute for the Origin of Particles and the Universe (KMI), Nagoya University)

Description

We investigate gravitational-wave emission from the nonlinear collapse of matter overdensities during an early matter-dominated era using cosmological N-body simulations. In this talk, I will present our simulation framework and summarize current results on the waveform and energy spectrum.