121 citations · 701 across the 27 of their papers we have counts for
5 papers · 2 filters
Implications of stochastic effects for primordial black hole production in ultra-slow-roll inflation
Daniel G. Figueroa, Sami Raatikainen, Syksy Rasanen +1
We study the impact of stochastic noise on the generation of primordial black hole (PBH) seeds in ultra-slow-roll (USR) inflation with numerical simulations. We consider the non-li…
A numerical approach to stochastic inflation and primordial black holes
Eemeli Tomberg
Certain models of cosmic inflation produce strong cosmological perturbations at short length scales, which may later collapse into primordial black holes. To find the statistics of…
Unit conversions and collected numbers in cosmology
Eemeli Tomberg
This note collects together useful unit conversions and numerical values from early universe cosmology. It is a quick reference that can be used to make easy order-of-magnitude est…
Tachyonic Preheating in Plateau Inflation
Eemeli Tomberg, Hardi Veermäe
Plateau inflation is an experimentally consistent framework in which the scale of inflation can be kept relatively low. Close to the edge of the plateau, scalar perturbations are s…
Tachyonic Preheating in Palatini Inflation
Alexandros Karam, Eemeli Tomberg, Hardi Veermäe
We study preheating in the Palatini formalism with a quadratic inflaton potential and an added term. In such models, the oscillating inflaton field repeatedly returns to the…