Speaker
Dr
Ville Vaskonen
Description
Strongly supercooled phase transitions cause a period of thermal inflation. Such first-order phase transitions typically generate a strong primary gravitational wave background from bubble collisions. In this talk, I will show that if the transition is also slow it leads to the formation of large inhomogeneities that source a secondary gravitational wave background. For sufficiently slow transitions the secondary background dominates over the primary one. I will also discuss the formation of primordial black holes in such transitions.
Author
Co-authors
Dr
Marek Lewicki
(University of Warsaw)
Piotr Toczek
(University of Warsaw)
