Measuring the tilt of primordial gravitational-wave power spectrum from observations
Cosmology and Nongalactic Astrophysics
2025-03-28 v1 General Relativity and Quantum Cosmology
Abstract
Primordial gravitational waves generated during inflation lead to the B-mode polarization in the cosmic microwave background and a stochastic gravitational wave background in the Universe. We will explore the current constraint on the tilt of primordial gravitational-wave spectrum, and forecast how the future observations can improve the current constraint.
Keywords
Cite
@article{arxiv.1907.09794,
title = {Measuring the tilt of primordial gravitational-wave power spectrum from observations},
author = {Jun Li and Zu-Cheng Chen and Qing-Guo Huang},
journal= {arXiv preprint arXiv:1907.09794},
year = {2025}
}
Comments
3 pages, 2 figures