Power-Law Inflation in n-Dimensional Fractional Scalar Field Cosmology: Observational Constraints and Dynamical Analysis

Daniel Oliveira, Seyed Rasouli, Joao Marto +1

Power-law inflation with $a(t)\propto t^m$ is conceptually simple and predicts a scalar tilt $n_s=1-2/m$ compatible with CMB data, but in four-dimensional Einstein gravity it…