11 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…
Hard thermal contributions to phase transition observables at NNLO
Fabio Bernardo, Mikael Chala, Luis Gil +1
To construct the high-temperature effective field theory of gauge-Higgs models up to in the gauge coupling, we integrate out hard modes to three-loop level and u…
A critical look at low-scale cosmological phase transitions in the PTA era
Simone Biondini, Philipp Schicho
Motivated by the recent evidence for a stochastic gravitational-wave (GW) background reported by pulsar timing array (PTA) collaborations, we perform a precision study of low-scale…
Higher-dimensional operators and Polyakov loop in hot Scalar QED from the heat kernel
Siddhartha Bandyopadhyay, Joydeep Chakrabortty, Debmalya Dey +2
Using the finite-temperature heat kernel method, we compute the gauge-invariant effective Lagrangian up to dimension-six for massive hot scalar QED. We propose two complementary me…
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…
Matching higher-dimensional operators at finite temperature for general models
Fabio Bernardo, Romain Guillermo Reinle, Philipp Schicho
High-temperature dimensional reduction provides a systematic effective field theory framework for studying finite-temperature thermodynamics and cosmological phase transitions. Whi…