21 citations · 21 across the 4 of their papers we have counts for
6 papers
Lukewarm inflation and the QCD axion
Paulo B. Ferraz, António Torres Manso, João G. Rosa
We show that a late period of warm inflation, at temperatures just above the QCD scale, can dilute the abundance of the QCD axion produced by the misalignment mechanism, thus avoid…
Lukewarm inflation, primordial black holes and gravitational waves
Paulo B. Ferraz, António Torres Manso, João G. Rosa
We show that a secondary period of warm inflation, at temperatures parametrically below the GUT scale, may not only dilute any unwanted thermal relics formed after reheating but al…
Non-Minimally Coupled Warm Inflation in the Defining Frame
Adrián Casado-Turrión, Paulo B. Ferraz, Mindaugas Karčiauskas +1
Warm inflation in scalar-tensor theories of gravity is investigated in the `defining' frame, where the theory and its parameter values are specified. Translating the result…
The inflation trilogy and primordial black holes
Paulo B. Ferraz, João G. Rosa
We propose an inflation scenario with three independent stages of cold, warm and thermal inflation, respectively, driven by different scalar fields, motivated by the large number o…
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…
Superradiant pion clouds around primordial black holes
Paulo B. Ferraz, Thomas W. Kephart, João G. Rosa
We show that highly spinning primordial black holes of mass kg, potentially born in a matter-dominated era after inflation, can produce clouds of pions in their vic…