1.5k citations · 3.4k across the 47 of their papers we have counts for
48 papers
Shrinking the Warm Little Inflaton
Paulo B. Ferraz, João G. Rosa
We show that warm inflation can be successfully realized in the high temperature regime through dissipative interactions between the inflaton and a single fermionic degree of freed…
Primordial black hole superradiance and evaporation in the string axiverse
Marco Calzà, João G. Rosa, Filipe Serrano
In the string axiverse scenario, light primordial black holes may spin up due to the Hawking emission of a large number of light (sub-MeV) axions. We show that this may trigger sup…
Superradiant axion clouds around asteroid-mass primordial black holes
Nuno P. Branco, Ricardo Z. Ferreira, João G. Rosa
We analyze the dynamics and observational signatures of axion clouds formed via the superradiant instability around primordial black holes, focusing on the mass range $10^{14}-10^{…
Comparable dark matter and baryon abundances with a heavy dark sector
João G. Rosa, Duarte M. C. Silva
We propose a scenario that explains the comparable abundances of dark matter (DM) and baryons without any coincidence in the corresponding particle masses. Here, DM corresponds to…
Determining the spin of light primordial black holes with Hawking radiation
Marco Calzà, João G. Rosa
We propose a method to determine the mass and spin of primordial black holes (PBHs) in the mass range kg (Hawking temperatures MeV GeV), base…
Micro-Bose/Proca dark matter stars from black hole superradiance
John March-Russell, João G. Rosa
We study the production of heavy, TeV, bosonic spin dark matter (DM) via the simultaneous processes of Hawking evaporation and superradiance (SR) from an initi…