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Micro Black Hole Dark Matter
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abstract
The influence of a possible low gravity scale, concretely through the presence of extra dimensions or additional species, on radiation properties of micro black holes is investigated. In particular, the suppression of evaporation through the so-called memory-burden effect is shown to be stronger, occurs earlier and with sharper transition compared to the canonical Planck-scale regime. It is furthermore shown how this affects the possibility of light primordial black hole dark matter, constraints on which may weaken substantially and allow them to be as light as $10^{-5}\,M_{\rm P}$, thereby lying in the particle regime.
Forward citations
Cited by 8 Pith papers
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Black Hole Memory Burden and its Signatures in Gravitational Waves from Mergers
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Memory burden effect of regular primordial black holes
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Breaking Free from the Swampland of Impossible Universes through the DESI Portal
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Breaking Free from the Swampland of Impossible Universes through the DESI Portal
DESI data indicating evolving dark energy may allow string theory to describe observed universes without violating swampland constraints on constant dark energy.
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