100 citations · 372 across the 13 of their papers we have counts for
6 papers · 1 filter
Heavy cosmic strings
M. Donaire, A. Rajantie
We argue that cosmic strings with high winding numbers generally form in first-order gauge symmetry breaking phase transitions, and we demonstrate this using computer simulations.…
Phase Transitions in the Early Universe and Defect Formation
A. Rajantie
In the first one of these two lectures, I give an introductory review of phase transitions in finite temperature field theories. I highlight the differences between theories with g…
Magnetic monopoles from gauge theory phase transitions
A. Rajantie
Thermal fluctuations of the gauge field lead to monopole formation at the grand unified phase transition in the early Universe, even if the transition is merely a smooth crossover.…
Baryogenesis at the end of hybrid inflation
Arttu Rajantie
The baryon asymmetry of the universe may originate in the phase transition at the end of hybrid inflation, provided that the reheat temperature is low enough. I show that if the fi…
Numerical simulations of electroweak baryogenesis at preheating
A. Rajantie, P. M. Saffin, E. J. Copeland
It has recently been suggested that the baryon washout problem of standard electroweak baryogenesis could be avoided if inflation ends at a low enough energy density and a parametr…
SU(5)+Adjoint Higgs at Finite Temperature
Arttu Rajantie
I present a three-dimensional effective theory that describes the high-temperature equilibrium behavior of the SU(5) theory accurately, but is much easier to study using non-pertur…