From the 1 of 3 linked papers with an AI index.
3 papers
astro-ph.CO2026
Models with Non-minimal Coupling in Primordial Universe and Cosmological Observations
Alireza Talebian, Hassan Firouzjahi, Fereshteh Felegary
The paper studies inflationary models with a non‑minimal coupling between the inflaton and gravity, analyzing their predictions for the tensor‑to‑scalar ratio and spectral index in…
astro-ph.CO2025
Axion USR Inflation
Alireza Talebian, Hassan Firouzjahi
We consider a model of inflation in which the inflaton field is a rolling axion with a potential which is flat enough to support an intermediate phase of USR inflation. Because of…
astro-ph.CO2024
Revisiting the stochastic QCD axion window: departure from equilibrium during inflation
Vadim Briaud, Kenji Kadota, Shinji Mukohyama +2
If dark matter is made of QCD axions, its abundance is determined by the vacuum expectation value acquired by the axion field during inflation. The axion is usually assumed to foll…