Work

Multiple peaks in gravitational waves induced from primordial curvature perturbations with non-Gaussianity

Year: 2024

Type: article

Abstract: First-order primordial curvature perturbations are known to induce gravitational waves at the second-order, which can in turn probe the small-scale curvature perturbations near the end of the inflation. In this work, we extend the previous analysis in the Gaussian case into the non-Gaussian case, with particular efforts to obtain some thumb rules of sandwiching the associated peaks in gravitational waves induced from multiple peaks of non-Gaussian curvature perturbations.

Source: Journal of Cosmology and Astroparticle Physics

DOI: 10.1088/1475-7516/2024/10/045

Authors: Xiang-Xi Zeng, Rong-Gen Cai, Shao-Jiang Wang

Institutions: Chinese Academy of Sciences, Institute of Theoretical Physics, University of Chinese Academy of Sciences, Ningbo 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 Natural Science Foundation of China, Chinese Academy of Sciences, National Key Research and Development Program of China

OpenAlex ID: W4403426181

FWCI: 1.526

Cites: 79

Cited by: 8

Related to: 10