2 papers
astro-ph.CO2026
UV artefacts in ultra-slow-roll models of inflation
Gerald Barnert, Laura Iacconi, Hooshyar Assadullahi +2
Within single-field inflation, primordial black hole and scalar-induced gravitational wave production from enhanced primordial perturbations typically requires a transient non-attr…
astro-ph.CO2025
Stochastic inflation beyond slow roll: noise modelling and importance sampling
Joseph H. P. Jackson, Hooshyar Assadullahi, Andrew D. Gow +3
We simulate the distribution of very rare, large excursions in the primordial density field produced in models of inflation in the very early universe which include a strong enhanc…