Signatures of extra dimensions in gravitational waves
High Energy Physics - Theory
2019-05-09 v3 Cosmology and Nongalactic Astrophysics
High Energy Astrophysical Phenomena
General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
Abstract
Considering gravitational waves propagating on the most general 4+N-dimensional space-time, we investigate the effects due to the N extra dimensions on the four-dimensional waves. All wave equations are derived in general and discussed. On Minkowski4 times an arbitrary Ricci-flat compact manifold, we find: a massless wave with an additional polarization, the breathing mode, and extra waves with high frequencies fixed by Kaluza-Klein masses. We discuss whether these two effects could be observed.
Keywords
Cite
@article{arxiv.1704.07392,
title = {Signatures of extra dimensions in gravitational waves},
author = {David Andriot and Gustavo Lucena Gómez},
journal= {arXiv preprint arXiv:1704.07392},
year = {2019}
}
Comments
v1: 21 pages + appendices, comments welcome! v2: few minor additions; v3: minor mistake corrected in the warped case, no impact on the main results, appendix A.2 modified