83 citations · 159 across the 9 of their papers we have counts for
9 papers
Theoretical uncertainties in reconstructing model parameters with gravitational waves from supercooled phase transitions
Maciej Kierkla, Marek Lewicki, Philipp Schicho +2
Future interferometers may detect a gravitational-wave (GW) signal from a cosmological first-order phase transition. Reconstructing the underlying particle-physics model from such…
Theoretical consistency and phenomenology of supercooled cosmological phase transitions
Maciej Kierkla
This dissertation investigates a supercooled phase transition (PT) in the early Universe. Using high-temperature dimensional reduction (DR), we compute the NLO thermal bubble nucle…
Imprints of Reheating Dynamics on Gravitational Waves from Phase Transitions
Basabendu Barman, Maciej Kierkla, Marek Lewicki +1
We investigate how perturbative reheating after inflation modifies the primordial gravitational wave (GW) spectrum generated by cosmological phase transitions. Within a specific in…
Thermodynamical uncertainties for primordial black holes from cosmological phase transitions
Maciej Kierkla, Nicklas Ramberg, Philipp Schicho +1
Strongly supercooled first-order phase transitions have been proposed as a primordial black hole (PBH) production mechanism. While previous works rely on simplified models with lim…
Finite-temperature bubble nucleation with shifting scale hierarchies
Maciej Kierkla, Philipp Schicho, Bogumila Swiezewska +2
Focusing on supercooled phase transitions in models with classical scale symmetry, we formulate a state-of-the art framework for computing the bubble-nucleation rate, accounting fo…
Gravitational waves from supercooled phase transitions: dimensional transmutation meets dimensional reduction
Maciej Kierkla, Bogumila Swiezewska, Tuomas V. I. Tenkanen +1
Models with radiative symmetry breaking typically feature strongly supercooled first-order phase transitions, which result in an observable stochastic gravitational wave background…
From Hubble to Bubble
Maciej Kierkla, Giorgio Laverda, Marek Lewicki +4
The detection of a stochastic Gravitational Wave (GW) background sourced by a cosmological phase transition would allow us to see the early Universe from a completely new perspecti…
Scale-Invariant Model for Gravitational Waves and Dark Matter
Alexandros Karam, Maciej Kierkla, Bogumiła Świeżewska
We have conducted a revised analysis of the first-order phase transition that is associated with symmetry breaking in a classically scale-invariant model that has been extended wit…
Conformal model for gravitational waves and dark matter: A status update
Maciej Kierkla, Alexandros Karam, Bogumila Swiezewska
We present an updated analysis of the first-order phase transition associated with symmetry breaking in the early Universe in a classically scale-invariant model extended with a ne…