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arXiv · 2610.29967

Gravitational Waves from New Inflation

Naoya Kitajima·Kamil Mudrunka·Kazunori Nakayama
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Abstract

Gravitational waves provide one of the most powerful observational probes for discriminating among inflationary models. In particular, it has recently become clear that the high-frequency gravitational-wave spectrum encodes a wealth of information about the properties of the inflaton and the post-inflationary dynamics. In this paper, we present the first comprehensive prediction of the complete gravitational-wave spectrum in the new inflation scenario, a prototypical realization of small-field inflation, incorporating all known production mechanisms including both the classical and quantum sources.

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Naoya Kitajima, Kamil Mudrunka, Kazunori Nakayama. 2026-10-21. Gravitational Waves from New Inflation. https://arxiv.org/abs/2610.29967

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