198 citations · 572 across the 22 of their papers we have counts for
8 papers · 1 filter
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…
Gravitational Waves from Density Perturbations in an Early Matter Domination Era
Ioannis Dalianis, Chris Kouvaris
We calculate the gravitational wave background produced from density perturbations in an early matter domination era where primordial black holes form. The formation of black holes…
Exploring the Spectral Shape of Gravitational Waves Induced by Primordial Scalar Perturbations and Connection with the Primordial Black Hole Scenarios
Ioannis Dalianis, Konstantinos Kritos
There is a growing expectation that the gravitational wave detectors will start probing the stochastic gravitational wave backgrounds in the following years. We explore the spectra…
Generalized Non-Minimal Derivative Coupling: Application to Inflation and Primordial Black Hole Production
Ioannis Dalianis, Stelios Karydas, Eleftherios Papantonopoulos
We introduce inflationary models where the inflaton features a field dependent non-minimal derivative coupling to the Einstein tensor, that we name GNMDC. This Horndeski term gives…
PBH remnants as dark matter produced in thermal, matter and runaway-quintessence post-inflationary scenarios
Ioannis Dalianis, George Tringas
We investigate the cosmology of mini Primordial Black Holes (PBHs) produced by large density perturbations. The mini PBHs evaporate promptly in the early universe and we assume tha…
Electromagnetic probes of primordial black holes as dark matter
Y. Ali-Haimoud, S. Clesse, J. Garcia-Bellido +91
The LIGO discoveries have rekindled suggestions that primordial black holes (BHs) may constitute part to all of the dark matter (DM) in the Universe. Such suggestions came from 1)…
Constraints on the curvature power spectrum from primordial black hole evaporation
Ioannis Dalianis
We estimate the maximum allowed amplitude for the power spectrum of the primordial curvature perturbations, , on all scales from the absence of any detection signals…
Primordial Black Holes from -attractors
Ioannis Dalianis, Alex Kehagias, George Tringas
We consider primordial black hole (PBH) production in inflationary -attractors. We discuss two classes of models, namely models with a minimal polynomial superpotential as well…