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Very-High-Frequency Gravitational Waves from Multi-Monodromy Inflation

arXivJuly 24, 20261 min read

arXiv:2601.09834v2 Announce Type: replace-cross 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.

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.

High Energy Physics - Phenomenology (hep-ph); Cosmology and Nongalactic Astrophysics (astro-ph.CO); General Relativity and Quantum Cosmology (gr-qc); High Energy Physics - Theory (hep-th); Quantum Physics (quant-ph)

arXiv:2601.09834 [hep-ph]

(or arXiv:2601.09834v2 [hep-ph] for this version)

Phys. Rev. D114, 023540 (2026)

https://doi.org/10.1103/q4pv-zj9c DOI(s) linking to related resources

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