11 papers
Benchmarking wall velocities in cosmological phase transitions: Fluid Ansatz and WallGo
Gláuber C. Dorsch, Marek Lewicki, Daniel A. Pinto
A reliable computation of the bubble wall velocity during a cosmological phase transition requires an adequate modeling of the non-equilibrium dynamics in the vicinity of this expa…
Gravitational waves from first-order cosmological phase transitions: lifetime of the sound wave source
John Ellis, Marek Lewicki, José Miguel No
We survey systematically the general parametrisations of particle-physics models for a first-order phase transition in the early universe, including models with polynomial potentia…
From friction scaling to an efficient method for estimating bubble wall velocity
Tomasz Krajewski, Marek Lewicki, Marco Merchand +2
We present a unified description of first-order cosmological phase transition dynamics that links the phenomenological friction model employed in hydrodynamic simulations to the mi…
Black holes and gravitational waves from phase transitions in realistic models
Marek Lewicki, Piotr Toczek, Ville Vaskonen
We study realistic models predicting primordial black hole (PBH) formation from density fluctuations generated in a first-order phase transition. We show that the second-order corr…
Reconstructing early universe evolution with gravitational waves from supercooled phase transitions
Adam Gonstal, Marek Lewicki, Bogumila Swiezewska
We study gravitational waves from supercooled cosmological first-order phase transitions. If such a transition is followed by inefficient reheating, the evolution history of the un…
Impact of cosmic expansion on gravitational wave spectra from strongly supercooled first-order phase transitions
Marek Lewicki, Ville Vaskonen
We compute the gravitational wave spectra from strongly supercooled first-order phase transitions, explicitly incorporating the evolution of the background metric across the transi…