41 citations · 149 across the 7 of their papers we have counts for
7 papers
General SIGW source for reheating dynamics
M. Laine, S. Procacci
Working in an arbitrary gauge, we derive the source term for scalar-induced gravitational waves (SIGW) valid during a general reheating epoch. The dominant energy component is allo…
Evolution of coupled scalar perturbations through smooth reheating. II. Thermal fluctuation regime
M. Laine, S. Procacci, A. Rogelj
Curvature perturbations with short wavelengths exit the Hubble horizon when the universe may contain a thermal plasma in addition to an inflaton field that drives its expansion. We…
Maximal temperature of strongly-coupled dark sectors
H. Kolesova, M. Laine, S. Procacci
Taking axion inflation as an example, we estimate the maximal temperature () that can be reached in the post-inflationary universe, as a function of the confinemen…
Gravitational wave background from vacuum and thermal fluctuations during axion-like inflation
P. Klose, M. Laine, S. Procacci
We revisit the framework of axion-like inflation in view of the possibility that the coupling of the inflaton to a non-Abelian topological charge density could lead to the generati…
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…
Gravitational wave background from non-Abelian reheating after axion-like inflation
P. Klose, M. Laine, S. Procacci
A pseudoscalar inflaton , coupled to the topological charge density of a non-Abelian sector, can decay to gauge bosons (), which may thermalize rapidly.…
Minimal warm inflation with complete medium response
M. Laine, S. Procacci
If a homogeneous field evolves within a medium, with the latter gradually picking up a temperature, then the friction felt by the field depends on how its evolution rate compares w…