Speaker
Joonas Hirvonen
(University of Nottingham)
Description
First-order phase transitions in the early universe provide a possible mechanism for producing observable gravitational waves. Predicting the gravitational wave spectrum requires accurate nucleation rate computations, as the rate determines the transition temperature and duration. These computations often rely on Langer's nucleation rate formula, which has long resisted validation in numerical simulations. Here, we present work that, for the first time, demonstrates agreement between Langer's formula and lattice simulations. Our findings clarify the conditions necessary for successful lattice simulations of nucleation and reveal insights into nucleation processes and the limitations of Langer's formula.
Primary author
Joonas Hirvonen
(University of Nottingham)
