Exploring Bubble Tails with Gravitational Waves
IFPU
5-9 May 2025
Cosmological first order phase transitions (FOPT) offer a rich avenue to explore the early universe, especially as sources of gravitational waves (GW) observable in the present day. Our focus is on studying GW signals originating from potentials with non-standard features after the field has tunneled. The initial tunneling affects the profile of the resulting bubble, while the potential’s shape beyond this point significantly influences how the field relaxes to the true minimum, which in turn impacts the GW signal. Our team aims to address the complexities of these non-standard potentials by mod- eling their behaviors through lattice simulations and developing semi-analytical methods for signal prediction. The scenarios under consideration include various analytical forms of the potential after tunneling, potential run-away directions in the scalar potential, and configurations where mini-periods of inflation or matter domination arise.
Organisers:
- Toby Opferkuch (SISSA)
Participants:
- TBA