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arXiv · 2511.23182

Primordial Black Holes as Dark Matter and the Tachyonic Trap During Inflation

Yuma S. Furuta·Mindaugas Karčiauskas·Kazunori Kohri·Alejandro Sáez
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Abstract

We show that resonant processes during multi-field inflation can generate a large curvature perturbation on small scales. This perturbation naturally leads to the formation of primordial black holes that may constitute dark matter, as well as to the production of stochastic induced gravitational waves in the deci-Hz band. Such waves are within reach of future space-based interferometers such as LISA, DECIGO and BBO. In addition, primordial black hole binaries formed at late times produce merger gravitational waves that can be probed by the resonant cavity experiments in addition to DECIGO and BBO.

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Yuma S. Furuta, Mindaugas Karčiauskas, Kazunori Kohri, Alejandro Sáez. 2025-11-28. Primordial Black Holes as Dark Matter and the Tachyonic Trap During Inflation. https://arxiv.org/abs/2511.23182

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