54 citations · 148 across the 5 of their papers we have counts for
Showing astro-ph.COShow all
3 papers · 1 filter
astro-ph.CO2022★ 20 cited
The effect of multiple features on the power spectrum in two-field inflation
K. Boutivas, I. Dalianis, G. P. Kodaxis +1
We extend our previous work on the enhancement of the curvature spectrum during inflation to the two-field case. We identify the slow-roll parameter as the quantity that can tr…
astro-ph.CO2021
Reheating in runaway inflation models via the evaporation of mini primordial black holes
Ioannis Dalianis, George P. Kodaxis
We investigate the cosmology of mini Primordial Black Holes (PBHs) produced by large density perturbations that collapse during a stiff fluid domination phase. Such a phase can be…
astro-ph.CO2021★ 53 cited
Spectrum oscillations from features in the potential of single-field inflation
I. Dalianis, G. P. Kodaxis, I. D. Stamou +2
We study single-field inflationary models with steep step-like features in the potential that lead to the temporary violation of the slow-roll conditions during the evolution of th…