Scalar Induced Gravitational Waves in Different Gauges
Cosmology and Nongalactic Astrophysics2025-03-28v3General Relativity and Quantum CosmologyHigh Energy Physics - PhenomenologyHigh Energy Physics - Theory
In this letter we calculate the scalar induced gravitational waves (SIGWs) accompanying the formation of primordial black hole during the radiation dominated era in three different gauges, i.e. synchronous gauge, Newton gauge and uniform curvature gauge, and we find that the energy density spectra of SIGWs, \ogw(k), are identical in these three different gauges.
@article{arxiv.1912.00885,
title = {Scalar Induced Gravitational Waves in Different Gauges},
author = {Chen Yuan and Zu-Cheng Chen and Qing-Guo Huang},
journal= {arXiv preprint arXiv:1912.00885},
year = {2025}
}
Comments
2 figures, 8 pages; errors in I(u,v) corrected; version accepted for publication