10 citations · 11 across the 5 of their papers we have counts for
5 papers
From inflation to hot big bang -- a tutorial on cosmological perturbations
Mikko Laine, Simona Procacci
These lecture notes are meant as a pedagogic guide to cosmological inflation and the early epochs thereafter. Inflation explains how the seeds for density perturbations, which evol…
Fluid perturbations from expanding bubbles in first-order phase transitions
Chiara Caprini, Antonino S. Midiri, Simona Procacci +1
We study the power spectrum of the velocity field induced during a first-order phase transition occurring in the radiation-dominated era. We focus on the phase of bubble expansion,…
Evolution of coupled scalar perturbations through smooth reheating. I. Dissipative regime
M. Laine, S. Procacci, A. Rogelj
If the inflaton is a heavy scalar field, it may equilibrate slower than some other degrees of freedom, e.g. non-Abelian gauge bosons. In this case, perturbations in the inflaton fi…
Smooth reheating and dark matter via non-Abelian gauge theory
Simone Biondini, Helena Kolesova, Simona Procacci
We demonstrate how a dark sector can provide a crucial link between a vacuum-dominated early universe and the later radiation-dominated epoch. As an example, we consider a feeble a…
Characterization of the gravitational wave spectrum from sound waves within the sound shell model
Alberto Roper Pol, Simona Procacci, Chiara Caprini
We compute the gravitational wave (GW) spectrum sourced by sound waves produced during a first-order phase transition in the radiation-dominated epoch. The correlator of the veloci…