Scalar one-loop tensor power spectrum during single-field inflation

Jiwon Kong, Jieun Jeon, Jinn-Ouk Gong

Published 2024-10-22Version 1

We calculate the scalar-induced one-loop correction to the power spectrum of tensor perturbations produced during single-field slow-roll inflation. We find that the correction is given by the square of the product of the slow-roll parameter and the tree-level scalar power spectrum. We also discuss the implications of the logarithmic contribution.