Numerical Relativity and Primordial Black Holes with local non-Gaussianities

量子物理学・ナノサイエンス第404回セミナー

概要

I will start giving a brief introduction to solving the full General Relativity equation using Numerical Relativity (NR), and later present our recent work where we investigated the Primordial Black Hole (PBH) formation in the presence of logarithmic non-Gaussianities. There, we have used NR simulations to accurately compute the formation thresholds, and resolve the expected PBH abundances. We also computed the associated Scalar Induced Gravitational Waves (SIGW) and provide the visibility signals for LISA-like experiments, and discuss the SIGW interpretation with respect the nanoHz stochastic gravitational wave background signal from recently reported by Pulsar Timing Arrays observations.

Ref.：https://arxiv.org/abs/2411.07647

• 量子物理学・ナノサイエンス第404回セミナー

• 東京科学大学理学院・物理学系 ナノサイエンスを拓く量子物理学拠点　共催