Speaker
Description
Recent advances in gravitational wave (GW) astronomy have opened a new observational window to probe early-universe physics and scenarios beyond the Standard Model (BSM). In particular, scale-invariant models with dynamical symmetry breaking predict strong first-order phase transitions (FOPT) in the early universe, which can generate stochastic backgrounds of GWs detectable by future observatories such as LISA or Einstein Telescope.
These phase transitions can also lead to the formation of primordial black holes (PBHs) through various mechanisms such as bubble collisions or density inhomogeneities. PBHs, in turn, provide a viable and testable candidate for dark matter (DM). Moreover, the dynamics associated with these transitions, as well as scalar field evolution, may naturally give rise to primordial magnetic fields.
Thus, GWs emerge as a central cosmic messenger, unifying diverse phenomena such as PBH formation and magnetic field generation within a single early-universe framework.
