Scalar one-loop tensor power spectrum during single-field inflation
Cosmology and Nongalactic Astrophysics
2025-08-06 v3 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
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.
Cite
@article{arxiv.2410.16688,
title = {Scalar one-loop tensor power spectrum during single-field inflation},
author = {Jiwon Kong and Jieun Jeon and Jinn-Ouk Gong},
journal= {arXiv preprint arXiv:2410.16688},
year = {2025}
}
Comments
(v1) 10 pages, 2 figures; (v2) typos corrected, references added; (v3) 14 pages, 2 figures, discussions expanded including new appendix sections, to appear in Journal of Cosmology and Astroparticle Physics