3 papers
astro-ph.CO2025
Constraining regular primordial black holes with isocurvature gravitational waves
Ngo Phuc Duc Loc
We find the constraint on the population of ultra-light regular primordial black holes (RPBHs) by using isocurvature gravitational waves (GW). If ultra-light RPBHs dominated the ea…
hep-ph2025
Dark matter production from evaporation of regular primordial black holes
Ngo Phuc Duc Loc
We point out that a simple redefinition of the regularizing parameter in regular black hole (RBH) metrics can preserve the self-similarity of the evaporation process. This implies…
hep-ph2025
Gravitational wave signatures of primordial black hole accretion during early matter domination
Rouzbeh Allahverdi, James B. Dent, Ngo Phuc Duc Loc +1
We present a scenario in which primordial black holes (PBHs) form in a post-inflationary radiation-dominated (RD) phase and then experience significant accretion during a phase of…