More on gravitational waves from double monodromy inflation
General Relativity and Quantum Cosmology
2022-11-22 v3 High Energy Physics - Theory
Abstract
We further analyze phenomenological implications of double axion monodromy inflation proposed in Ref. Phys. Rev. D 104, L081302 (2021), in gravitational wave physics. We show that in addition to chiral gravitational waves (GW) originating from gauge field instability, the model also predicts significant amount of non-chiral, scalar-induced gravitational waves, both peaking at around the same frequencies. We find that although chiral GW density has much larger peak, non-chiral GWs can dominate away from the peak as they decay at a slower rate. This provides an interesting GW signature to be probed by future space-based interferometers such as LISA and DECIGO.
Cite
@article{arxiv.2210.07155,
title = {More on gravitational waves from double monodromy inflation},
author = {Medeu Abishev and Aigerim Abylayeva and Andrea Addazi and Yermek Aldabergenov and Daulet Berkimbayev},
journal= {arXiv preprint arXiv:2210.07155},
year = {2022}
}
Comments
Revtex 4-2; 6 pages, 3 figures. V3: revised version (accepted to PLB)