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arXiv · 1811.06532

Primordial Black Holes With Multi-Modal Mass Spectra

Bernard Carr·Florian Kuhnel
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Abstract

A mechanism for generating primordial black-hole mass spectra with many spikes is proposed and investigated. This mechanism relies on the choice of non-Bunch-Davies vacua, these leading to oscillatory features in the inflationary power spectrum. This in turn generates oscillations in the primordial black-hole mass function with exponentially enhanced spikes. This ``multimodal'' effect is demonstrated for most of the well-studied models of primordial black-hole formation.

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Bernard Carr, Florian Kuhnel. 2018-11-15. Primordial Black Holes With Multi-Modal Mass Spectra. https://doi.org/10.1103/physrevd.99.103535

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