Smearing of primordial gravitational waves
General Relativity and Quantum Cosmology
2024-04-15 v1 Cosmology and Nongalactic Astrophysics
Abstract
A mechanism for smearing of the primordial gravitational waves during the radiation-dominated phase of the evolution of the Universe is considered. It is shown that the primordial gravitational waves can possess hyperbolicity features due to their propagation through the matter inhomogeneities. This mechanism of smearing can lead to the flattening of the original gravitational wave spectrum and hence has to be taken into account at the interpretation of the properties of primordial gravitational background on the detection of which are oriented ongoing and forthcoming experimental facilities.
Keywords
Cite
@article{arxiv.2404.07244,
title = {Smearing of primordial gravitational waves},
author = {M. Samsonyan and A. A. Kocharyan and V. G. Gurzadyan},
journal= {arXiv preprint arXiv:2404.07244},
year = {2024}
}
Comments
8 pages, 4 figs; Eur Phys J Plus (in press)