Very-High-Frequency Gravitational Waves from Multi-Monodromy Inflation
High Energy Physics - Phenomenology
2026-01-16 v1 Cosmology and Nongalactic Astrophysics
General Relativity and Quantum Cosmology
High Energy Physics - Theory
Quantum Physics
Abstract
We show that in multi-stage axion monodromy inflation an interruption near the end of the penultimate stage can lead to a spike in the gravitational wave background. These gravitational waves are in the frequency range and with an amplitude accessible to proposed terrestrial detectors such as the Einstein Telescope, Cosmic Explorer, and future Levitated Sensor Detector experiments.
Cite
@article{arxiv.2601.09834,
title = {Very-High-Frequency Gravitational Waves from Multi-Monodromy Inflation},
author = {Guido D'Amico and Andrew A. Geraci and Nemanja Kaloper and Alexander Westphal},
journal= {arXiv preprint arXiv:2601.09834},
year = {2026}
}
Comments
1+20 pages, 6 figures