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Transitioning to Memory Burden: Detectable Small Primordial Black Holes as Dark Matter

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arxiv 2503.21740 v1 pith:UESAI4EG submitted 2025-03-27 hep-ph astro-ph.COastro-ph.HEgr-qchep-th

Transitioning to Memory Burden: Detectable Small Primordial Black Holes as Dark Matter

classification hep-ph astro-ph.COastro-ph.HEgr-qchep-th
keywords smallblackholespbhsburdendarkdetectableeffect
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Mounting theoretical evidence suggests that black holes are subjected to the memory burden effect, implying that after certain time the information stored in them suppresses the decay rate. This effect opens up a new window for small primordial black holes (PBHs) below $10^{15}\,{\rm g}$ as dark matter. We show that the smooth transition from semi-classical evaporation to the memory-burdened phase strongly impacts observational bounds on the abundance of small PBHs. The most stringent constraints come from present-day fluxes of astrophysical particles. Remarkably, currently-transitioning small PBHs are detectable through high-energetic neutrino events.

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Cited by 8 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Black Hole Memory Burden and its Signatures in Gravitational Waves from Mergers

    gr-qc 2026-07 conditional novelty 6.0

    Swift memory burden shifts black-hole quasinormal-mode frequencies by an amount set by the memory-load parameter μ and critical exponent p, with μ able to exceed the progenitor's information content.

  2. 5D Rotating Black Holes as dark matter in Dark Dimension Scenario: Hawking Radiation versus the Memory Burden Effect

    hep-th 2025-12 unverdicted novelty 6.0

    Five-dimensional rotating primordial black holes with initial masses above 10^10 grams survive to today and can account for all dark matter due to suppressed Hawking radiation and memory burden effects in the micron-s...

  3. Electromagnetic Signatures From Primordial Black Holes in the Solar System

    hep-ph 2026-05 unverdicted novelty 5.0

    Calculations show AMEGO-X could detect PBH transits within 0.1 AU of Earth while HAWC and LHAASO could see explosions out to 0.1-0.5 pc, with future 1000 AU bursts potentially yielding measurable EM signals unlike the...

  4. Electromagnetic Signatures From Primordial Black Holes in the Solar System

    hep-ph 2026-05 unverdicted novelty 5.0

    Calculations indicate AMEGO-X could detect PBH transits within 0.1 AU while HAWC and LHAASO could observe explosions out to 0.1-0.5 pc, with future events at ~1000 AU potentially producing measurable electromagnetic s...

  5. Memory burden effect of regular primordial black holes

    astro-ph.CO 2026-05 unverdicted novelty 5.0

    Combining regular black hole metrics with memory burden suppresses evaporation and opens a 10^6-10^8 g PBH mass window that can comprise all dark matter.

  6. Exponentially Long Evaporation of Noncommutative Black Hole

    hep-th 2026-04 unverdicted novelty 5.0

    Noncommutative spacetime shifts the collapsing shell proportionally to outgoing Hawking mode momentum, invalidating standard robustness arguments and causing radiation to decay exponentially after scrambling for expon...

  7. Testing Heavy Dark Matter Decay as the Origin of KM3-230213A

    hep-ex 2026-06 unverdicted novelty 4.0

    Assuming the KM3-230213A event comes from heavy dark matter decay, the preferred mass exceeds 100 PeV at 95% CL with lifetimes of 10^26-10^27 s, but these regions conflict with bounds from other neutrino telescopes an...

  8. WIMP/FIMP dark matter and primordial black holes with memory burden effect

    hep-ph 2025-06 unverdicted novelty 4.0

    Authors calculate relic abundance of dark matter as sum of thermal WIMP/FIMP production, Hawking radiation from PBHs, and surviving PBHs under memory burden, under conditions where thermal production dominates and PBH...