134 citations · 675 across the 13 of their papers we have counts for
14 papers
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…
How fast does the WallGo? A package for computing wall velocities in first-order phase transitions
Andreas Ekstedt, Oliver Gould, Joonas Hirvonen +4
WallGo is an open source software for the computation of the bubble wall velocity in first-order cosmological phase transitions. It also computes the energy budget available for th…
Investigating two-loop effects for first-order electroweak phase transitions
Lauri Niemi, Tuomas V. I. Tenkanen
We study first-order electroweak phase transitions in the real-singlet extended Standard Model, for which non-zero mixing between the Higgs and the singlet can efficiently strength…
Nonperturbative study of the electroweak phase transition in the real scalar singlet extended Standard Model
Lauri Niemi, Michael J. Ramsey-Musolf, Guotao Xia
We perform a nonperturbative lattice study of the electroweak phase transition in the real singlet scalar extension of the Standard Model.We consider both the heavy and light singl…
Shape of the hot topological charge density spectral function
M. Laine, L. Niemi, S. Procacci +1
After motivating an interest in the shape of the topological charge density spectral function in hot Yang-Mills theories, we estimate it with the help of thermally averaged classic…
Infrared physics of the 3D SU(2) adjoint Higgs model at the crossover transition
Lauri Niemi, Kari Rummukainen, Riikka Seppä +1
We study the crossover phase transition of the SU(2) Georgi-Glashow model in three dimensions. In this model, a confining condensate of topological 't Hooft-Polyakov monopoles exis…
Infrared physics of the Georgi-Glashow crossover transition
Lauri Niemi, Kari Rummukainen, Riikka Seppä +1
We perform a lattice study of the phase transition in the Georgi-Glashow model in three dimensions, where the gauge symmetry is broken to by the Hi…
Singlet-assisted electroweak phase transition at two loops
Lauri Niemi, Philipp Schicho, Tuomas V. I. Tenkanen
We investigate the electroweak phase transition in the real-singlet extension of the Standard Model at two-loop level, building upon existing one-loop studies. We calculate the eff…
Thermodynamics of a two-step electroweak phase transition
Lauri Niemi, Michael J. Ramsey-Musolf, Tuomas V. I. Tenkanen +1
New field content beyond that of the Standard Model of particle physics can alter the thermal history of electroweak symmetry breaking in the early universe. In particular, the sym…
On the validity of perturbative studies of the electroweak phase transition in the Two Higgs Doublet model
Kimmo Kainulainen, Venus Keus, Lauri Niemi +3
Making use of a dimensionally-reduced effective theory at high temperature, we perform a nonperturbative study of the electroweak phase transition in the Two Higgs Doublet model. W…
Nonperturbative analysis of the gravitational waves from a first-order electroweak phase transition
Oliver Gould, Jonathan Kozaczuk, Lauri Niemi +3
We present the first end-to-end nonperturbative analysis of the gravitational wave power spectrum from a thermal first-order electroweak phase transition (EWPT), using the framewor…
Electroweak phase transition in the SM - I: Dimensional reduction
Lauri Niemi, Hiren H. Patel, Michael J. Ramsey-Musolf +2
In a series of two papers, we make a comparative analysis of the performance of conventional perturbation theory to analyze electroweak phase transition in the real triplet extensi…
Three-dimensional effective theories for the two Higgs doublet model at high temperature
Tyler Gorda, Andreas Helset, Lauri Niemi +2
Due to the infrared problem of high-temperature field theory, a robust study of the electroweak phase transition (EWPT) requires use of non-perturbative methods. We apply the metho…
Nonperturbative Analysis of the Electroweak Phase Transition in the Two Higgs Doublet Model
Jens O. Andersen, Tyler Gorda, Andreas Helset +5
We perform a nonperturbative study of the electroweak phase transition (EWPT) in the two Higgs doublet model (2HDM) by deriving a dimensionally reduced high-temperature effective t…