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Primordial Black Holes

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arxiv 2211.05767 v5 pith:QIKRDYB3 submitted 2022-11-10 astro-ph.CO gr-qchep-phhep-th

classification astro-ph.COgr-qchep-phhep-th
keywords blackholesprimordialaspectscandidatesdarkearlyemphasis
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Aspects of primordial black holes, i.e. black holes formed in the early Universe, are reviewed. Special emphasis is put on their formation, their role as dark matter candidates and their manifold signatures, particularly through gravitational waves.

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Cited by 41 Pith papers

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

  1. Nonlinear Lattice Framework for Inflation: Bridging stochastic inflation and the $\delta{N}$ formalism

    gr-qc 2026-04 unverdicted novelty 8.0 of 10

    A shear-free lattice method bridges stochastic inflation and δN formalism by enabling fully nonlinear calculations of curvature perturbations in single-field models with ultra-slow-roll phases.

  2. Hawking emission of massive vector fields by Kerr black holes

    gr-qc 2026-07 conditional novelty 7.0 of 10

    First computation of massive vector (Proca) Hawking emission spectra from Kerr black holes, including polarization-dependent greybody factors, Page functions, and mass-enhanced superradiance up to ~7%.

  3. The statistics of curvature-profile dispersion in primordial black hole formation

    astro-ph.CO 2026-07 conditional novelty 7.0 of 10

    Rare coherent shape deformations of primordial curvature profiles can dominate primordial black hole abundance by lowering the collapse threshold enough to overcome their Gaussian statistical cost.

  4. The swallowed spike: the formation of light primordial black hole structures around heavy seeds

    astro-ph.CO 2026-06 unverdicted novelty 7.0 of 10

    Light PBHs around heavy primordial seeds form significantly less dense inner cores than particle DM because no studied torque mechanism prevents capture.

  5. The swallowed spike: the formation of light primordial black hole structures around heavy seeds

    astro-ph.CO 2026-06 accept novelty 7.0 of 10

    No torque mechanism studied supplies enough angular momentum for the innermost light-PBH shells around a heavy seed, so the spike core is swallowed and far less dense than a WIMP spike.

  6. Are Primordial Black Holes a Natural Dark Matter Candidate?

    hep-ph 2026-06 unverdicted novelty 7.0 of 10

    PBH dark matter spans all naturalness tiers, with some mechanisms as natural as WIMPs or freeze-in particles, determined by abundance map structure rather than candidate type.

  7. Gravitational Waves from Black Hole Reheating: The Scalar-Induced Component

    hep-ph 2026-05 unverdicted novelty 7.0 of 10

    Accounting for the minimal mass spread of primordial black holes from gravitational collapse suppresses the Poltergeist GW background to the level of generic scalar-induced signals and reopens ultra-light PBH parameter space.

  8. Gravitational wave emission from nonspherical collapse in an early matter-dominated era using N-body simulations

    astro-ph.CO 2026-05 unverdicted novelty 7.0 of 10

    Full numerical N-body treatment is required for reliable gravitational wave predictions from nonspherical collapse in early matter-dominated eras, with resulting spectra mappable to detector sensitivities via horizon ...

  9. A consistent formulation of stochastic inflation I: Non-Markovian effects and issues beyond linear perturbations

    astro-ph.CO 2026-05 unverdicted novelty 7.0 of 10

    The conventional truncation in stochastic inflation is inconsistent because quadratic-noise contributions are the same perturbative order as the deterministic non-Markovian corrections.

  10. Microscopic primordial black holes as macroscopic dark matter from large extra dimensions

    astro-ph.CO 2026-04 unverdicted novelty 7.0 of 10

    In the ADD extra-dimension model, microscopic primordial black holes undergo runaway accretion and grow to macroscopic scales, allowing them to comprise all dark matter with initial abundances as low as 10^{-44}.

  11. Spectator Axions in String Inflation and Primordial Black Holes

    hep-th 2026-07 conditional novelty 6.0 of 10

    In Fibre Inflation, spectator axions with f≲0.1 M_Pl leave the PBH power spectrum unchanged, while for f≳0.1 M_Pl and exponentially small non-perturbative prefactors they can raise P_R from 1.9e-4 to 3.5e-3 and enable...

  12. Primordial black holes forming during kination: the trapped, the overdense, and the void

    astro-ph.CO 2026-07 conditional novelty 6.0 of 10

    In one non-attractor inflation model, initially similar field fluctuations produce three distinct black-hole formation channels—trapped, overdense, void—with collapse thresholds determined by the full density profile,...

  13. The statistics of curvature-profile dispersion in primordial black hole formation

    astro-ph.CO 2026-07 conditional novelty 6.0 of 10

    Shape dispersion around the average peak profile is a genuine statistical ingredient: rare deformed curvature profiles can dominate primordial black hole formation when the power spectrum is broad or non-Gaussianity i...

  14. Constant-Roll Inflation: Analytical Formulae for Power Spectrum and Implications for Induced Gravitational Waves

    astro-ph.CO 2026-06 unverdicted novelty 6.0 of 10

    Analytical formulae for power spectrum peaks in constant-roll inflation enable parameter reconstruction from peak features and smoothed approximations for induced gravitational wave estimates.

  15. Opening the Window of Ultra-Light PBHs by Exorcising the Poltergeist

    hep-ph 2026-05 unverdicted novelty 6.0 of 10

    Incorporating the general-relativity mass tail df_PBH/d ln M ∝ M^3.78 smooths PBH evaporation, suppresses the scalar-induced GW signal by orders of magnitude, and reopens the ultra-light PBH window for the hot Big Bang.

  16. Nonlinear Lattice Framework for Inflation: Bridging stochastic inflation and the $\delta{N}$ formalism

    gr-qc 2026-04 conditional novelty 6.0 of 10

    A shear-free locally FLRW lattice framework for single-field inflation captures spatially varying expansion, curvature corrections, and nonlinear δN observables at a fraction of the cost of full numerical relativity.

  17. STOchastic LAttice Simulation of hybrid inflation

    astro-ph.CO 2026-03 conditional novelty 6.0 of 10

    In hybrid inflation, stochastic noise breaks topological defects into sub-Hubble-scale structures, and only the n=1 case leaves a global imprint on the curvature perturbation.

  18. BinaryGFH-v2: Improved method to search for gravitational waves from sub-solar-mass, ultra-compact binaries using the Generalized Frequency-Hough Transform

    gr-qc 2025-12 conditional novelty 6.0 of 10

    BinaryGFH-v2 is a modified GFH method that can search for inspiraling binaries with chirp masses 0.01–0.1 solar masses, validated in Gaussian noise and projected to constrain PBH dark matter.

  19. Trispectrum in Extended USR Model with Transition to SR

    astro-ph.CO 2025-09 conditional novelty 6.0 of 10

    In the two-phase USR-SR inflation model, g_NL = 25 h^3 / (3 (h-6)^3) and tau_NL = 9 h^4 / (h-6)^4, confirmed by both delta-N and in-in formalisms.

  20. Primordial black hole induced gravitational waves in $f(R)$ gravity

    astro-ph.CO 2025-08 unverdicted novelty 6.0 of 10

    In R^(1+ε) gravity, exponential growth of scalar perturbations during a PBH-driven early matter era enhances the induced gravitational wave signal, with Ω_GW ∝ f on large scales.

  21. Isotropy, anisotropies and non-Gaussianity in the scalar-induced gravitational-wave background: diagrammatic approach for primordial non-Gaussianity up to arbitrary order

    astro-ph.CO 2025-05 unverdicted novelty 6.0 of 10

    Extends diagrammatic approach for scalar-induced gravitational waves to arbitrary-order local PNG, deriving semi-analytic spectra for energy density, anisotropies, bispectrum and trispectrum up to quartic terms.

  22. Hamiltonians to all Orders in Perturbation Theory and Higher Loop Corrections in Single Field Inflation with PBHs Formation

    astro-ph.CO 2025-02 unverdicted novelty 6.0 of 10

    Derives all-order Hamiltonians via EFT of inflation for USR models and shows L-loop corrections to CMB-scale perturbations scale as (ΔN P_e L)^L, exiting perturbative control at L=4 for typical ΔN≈2.5.

  23. Non-Perturbative Hamiltonian and Higher Loop Corrections in USR Inflation

    astro-ph.CO 2025-02 unverdicted novelty 6.0 of 10

    In USR inflation with an idealized instantaneous sharp transition to slow-roll, higher loop corrections to curvature perturbations on CMB scales grow rapidly with loop order L and may exit perturbative control.

  24. Scalar-induced gravitational waves from a box-shaped curvature power spectrum

    gr-qc 2026-07 accept novelty 5.5 of 10

    Analytic SIGW spectra for a log-box curvature power spectrum: narrow-box geometric overlap factor turning IR slope k^{3}ln^{2}k into k^{2}ln^{2}k, plus broad-box product of universal edge functions.

  25. How Dilatation Invariance Suppresses Loop Corrections to Curvature Perturbations on CMB Scales

    astro-ph.CO 2026-08 conditional novelty 5.0 of 10

    Dilatation invariance forces the non-linear curvature perturbation on super-Hubble scales to depend only on the decaying/growing mode, suppressing loop corrections to the CMB power spectrum even with sharp transitions.

  26. Parameter Estimation on LIGO-Virgo-KAGRA O4a Binary Merger Triggers with Sub-solar Mass Components

    gr-qc 2026-07 conditional novelty 5.0 of 10

    Bayesian re-analysis of the seven LVK O4a sub-solar-mass triggers finds three that are compatible with a sub-solar-mass component, though none rises to detection significance.

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

    hep-ph 2026-05 unverdicted novelty 5.0 of 10

    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...

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

    hep-ph 2026-05 unverdicted novelty 5.0 of 10

    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...

  29. Primordial black holes in excursion set theory: Formation probabilities, mass functions, and window functions

    astro-ph.CO 2026-05 unverdicted novelty 5.0 of 10

    In excursion set theory with colored noises, the low-mass tail of the PBH mass function differs from Carr's formula because correlated noises end the degeneracy of formation probabilities, though Carr's formula remain...

  30. Inflation driven by repulsive-like primordial black holes

    gr-qc 2026-04 unverdicted novelty 5.0 of 10

    Repulsive-like primordial black holes in the Swiss-cheese framework produce quasi-de Sitter expansion, enabling inflation with evaporation reheating and acting as early dark energy for certain masses and densities.

  31. Memory-Burden Suppression of Hawking Radiation and Neutrino Constraints on Primordial Black Holes

    hep-ph 2026-04 unverdicted novelty 5.0 of 10

    Memory-burden backreaction deforms the Hawking spectrum to suppress its high-energy tail, lowering total luminosity and neutrino flux by a factor set by a single suppression parameter and thereby relaxing IceCube boun...

  32. Evolution of Linear Perturbations under Time-Dependent Hubble Friction I: SR-USR-SR Inflation

    gr-qc 2026-02 conditional novelty 5.0 of 10

    Analytic asymptotics show the dip in the SR-USR-SR curvature power spectrum comes from cancellation between two growing modes, not a constant-versus-growing cancellation.

  33. Primordial black hole dark matter from ultra-slow-roll inflation in Horndeski gravity

    gr-qc 2025-12 conditional novelty 5.0 of 10

    A kinetic cubic Horndeski coupling creates an ultra-slow-roll phase that amplifies curvature perturbations enough to produce asteroid-mass primordial black holes, potentially 90% of dark matter.

  34. Observational appearance and photon rings of non-singular black holes from anisotropic fluids

    gr-qc 2025-11 unverdicted novelty 5.0 of 10

    Simulations of photon rings around non-singular black holes from anisotropic fluids show they are difficult to distinguish from Schwarzschild black holes due to entangled theoretical, numerical, and observational unce...

  35. Impact of facility timing and coordination for next-generation gravitational-wave detectors

    gr-qc 2025-10 unverdicted novelty 5.0 of 10

    Simulations of ET and CE networks show delays degrade localization metrics far more than SNR, with LIGO India greatly reducing the impact for multi-messenger and stochastic searches.

  36. Implications for Pulsar Timing Arrays of Sub-solar Black Hole Detections: From LVK to Einstein Telescope and Cosmic Explorer

    astro-ph.CO 2025-08 conditional novelty 5.0 of 10

    A Bayesian analysis shows that a future sub-solar PBH detection would make the primordial SIGW interpretation of PTA data favored over the SMBH interpretation, but this preference is driven by the detection prior.

  37. Gravitational Waves from Primordial Black Holes: Connecting Low-Frequency Scalar-Induced Signatures to High-Frequency Binary Mergers

    astro-ph.CO 2026-07 conditional novelty 4.0 of 10

    For monochromatic primordial black holes, the low-frequency scalar-induced gravitational-wave peak and the high-frequency binary-merger ISCO frequency are linked by fISCO ≈ 3.4×10^20 Hz × (fSIGW/Hz)^2.

  38. Gravitational Waves from Primordial Black Holes: Connecting Low-Frequency Scalar-Induced Signatures to High-Frequency Binary Mergers

    astro-ph.CO 2026-07 unverdicted novelty 4.0 of 10

    Establishes a model-independent link between scalar-induced GW backgrounds and PBH binary merger signals, including the mass-independent relation f_peak = 1.79 f_ISCO.

  39. Ultralight dark matter mixed with primordial black holes

    astro-ph.CO 2026-06 unverdicted novelty 4.0 of 10

    In mixed ULDM-PBH halos the continuum PBH contribution alters soliton structure at the tens-of-percent level while discrete shot noise induces mode transitions too slow to matter on galactic timescales.

  40. Primordial black hole formation in bulk-viscous cosmology

    gr-qc 2026-06 unverdicted novelty 4.0 of 10

    Bulk viscosity raises the critical collapse threshold for primordial black holes by an amount comparable to the viscosity strength and increases the resulting black hole masses.

  41. Primordial Black Holes Evaporating before Big Bang Nucleosynthesis

    astro-ph.CO 2025-09 unverdicted novelty 4.0 of 10

    PBHs must exceed 10^9 g to affect BBN observables, yielding beta upper limits from 10^{-17} to 10^{-19} for masses 10^9-10^10 g, with public code provided.

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