4 papers
Dynamics of nucleation in thermal phase transitions
Oliver Gould, Joonas Hirvonen, Andrey Shkerin +1
We study dynamical effects during nucleation in thermal first-order phase transitions in field theory. Focusing on the classical regime of the decay of a metastable state, we prese…
WallGo investigates: Theoretical uncertainties in the bubble wall velocity
Jorinde van de Vis, Philipp Schicho, Lauri Niemi +3
We examine theoretical uncertainties in state-of-the-art calculations of the bubble wall velocity during first-order cosmological phase transitions. By utilising the software WallG…
Matter Sourced Bubble Nucleation in the Asymmetron Scalar-Tensor Theory
Usama Syed Aqeel, Clare Burrage, Oliver Gould +1
We investigate how matter density distributions affect thin-wall bubble formation in the asymmetron mechanism, a scalar-tensor theory with a universal coupling to matter and explic…
Langer's nucleation rate reproduced on the lattice
Joonas Hirvonen, Oliver Gould
We show that Langer's rate of bubble nucleation is quantitatively correct up to small higher-loop corrections, in comparison to lattice simulations. These results are a significant…