One-Loop Corrections to a Scalar Field During Inflation (original) (raw)

This paper explores one-loop corrections to a scalar field during the inflationary era of the early universe. It highlights that the curvature perturbation associated with primordial fluctuations plays a crucial role in the cosmic microwave background (CMB) observations. The findings suggest that while tree-level predictions provide a preliminary understanding of the relationship between curvature perturbations, the one-loop corrections may still be significant, especially at superhorizon scales, necessitating further work to analyze their impact on observable cosmological phenomena.