Work

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

Year: 2025

Type: article

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 spetctrum. We also discuss the implications of the logarithmic contribution.

Source: Journal of Cosmology and Astroparticle Physics

DOI: 10.1088/1475-7516/2025/08/020

Authors: Jiwon Kong, Jieun Jeon, Jinn-Ouk Gong

Institutions: Ewha Womans University, Asia Pacific Center for Theoretical Physics

Language: English

Topic: Cosmology and Gravitation Theories

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Research Foundation, Ewha Womans University, Ministry of Education, National Research Foundation of Korea

Award: G4196779202