Center for Theoretical Physics of the Universe (CTPU-PTC)

First-order phase transitions in the early Universe: gravitational waves, black holes, and feebly-interacting particles

Name: First-order phase transitions in the early Universe: gravitational waves, black holes, and feebly-interacting particles
Start: 2025-09-11T10:30:00+09:00
End: 2025-09-11T11:30:00+09:00
Location: No location set

by Prof. Ryusuke Jinno (Kobe University)

Thursday 11 Sept 2025, 10:30 → 11:30 Asia/Seoul

Description

Abstract: The possibility of first-order phase transition in the early Universe is drawing attention in view of gravitational wave observations planned for the 2030's. In this talk I will first report updates on Higgsless simulations on gravitational wave production, and then report (negative) results regarding primordial black hole formation from strong phase transitions. Then I will discuss possible characteristic imprints on the gravitational waves when feebly interacting particles are produced during first-order phase transitions.