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astro-ph.CO2025
Refined Predictions for Starobinsky Inflation and Post-inflationary Constraints in Light of ACT
Manuel Drees, Yong Xu
Recent measurements from the Atacama Cosmology Telescope (ACT), combined with Planck and DESI data, suggest a higher value for the spectral index . This places Starobinsky inf…
hep-ph2025
Inflection Point Inflation in Supergravity
Manuel Drees, Wenbin Zhao
In this paper, we study the inflection point inflation generated by a polynomial superpotential and a canonical Kähler potential under the supergravity framework, where only one ch…
astro-ph.CO2025
Inflaton Self Resonance, Oscillons, and Gravitational Waves in Small Field Polynomial Inflation
Manuel Drees, Chenhuan Wang
In this work, we investigate the post-inflationary dynamics of a simple single-field model with a renormalizable inflaton potential featuring a near-inflection point at a field val…