2 papers
astro-ph.CO2025
Primordial Black Holes from Inflation with a Spectator Field
Dario L. Lorenzoni, Sarah R. Geller, David I. Kaiser +1
How is the production of primordial black holes (PBHs) in single-field models of inflation impacted by the presence of additional scalar fields? We consider the effect of a spectat…
astro-ph.CO2025
Light Scalar Fields Foster Production of Primordial Black Holes
Dario L. Lorenzoni, Sarah R. Geller, Zachary Ireland +3
Scalar fields are ubiquitous in theories of high-energy physics. In the context of cosmic inflation, this suggests the existence of spectator fields, which provide a subdominant so…