ACT, SPT, and chaotic inflation
Renata Kallosh, Andrei Linde, Diederik Roest
Published: 2025/3/25
Abstract
We show that the simplest generalization of the chaotic inflation model $\tfrac12 {m^{2}\phi^{2}}$ with nonminimal coupling to gravity $(1+\phi) R$ provides a good match to the results of the latest data release of the Atacama Cosmology Telescope, with $r \approx10^{-2}$.