Ekapob Kulchoakrungsun

Removability criterion for radiative corrections to the Starobinsky attractor in weakly nonlocal gravity

Radiative corrections at the percent level can shift the predictions of $\alpha$-attractor and Starobinsky-like models into the region of the $(n_s,r)$ plane preferred by ACT DR6. We show that the decisive property is not the size of a correction but whether it is removable. In the slow-roll $N$-formalism the observabl...