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Primordial black holes and their gravitational-wave signatures [PDF]
Living Reviews in RelativityIn the recent years, primordial black holes (PBHs) have emerged as one of the most interesting and hotly debated topics in cosmology. Among other possibilities, PBHs could explain both some of the signals from binary black hole mergers observed in ...
Eleni Bagui +20 more
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Turning in the landscape: A new mechanism for generating primordial black holes
Physics Letters B, 2023 We propose a new model-independent mechanism for producing primordial black holes from a period of multi-field inflation. This requires an enhancement of primordial fluctuations at short scales compared to their value at CMB scales.
Jacopo Fumagalli +3 more
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Inflation and Primordial Black Holes
Universe, 2023 We review conceptual aspects of inflationary scenarios able to produce primordial black holes by amplifying the size of curvature fluctuations to the level required to trigger black hole formation. We identify general mechanisms to do so, both for single-
Ogan Özsoy, Gianmassimo Tasinato
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Accretion, primordial black holes and standard cosmology
Pramana - Journal of Physics, 2011 Primordial Black Holes evaporate due to Hawking radiation. We find that the evaporation time of primordial black holes increase when accretion of radiation is included.Thus depending on accretion efficiency more and more number of primordial black holes ...
B Nayak, L P Singh
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Primordial black holes as a probe of strongly first-order electroweak phase transition
Physics Letters B, 2022 Primordial black holes can be produced by density fluctuations generated from delayed vacuum decays of first-order phase transition. The primordial black holes generated at the electroweak phase transition have masses of about 10−5 solar mass.
Katsuya Hashino +2 more
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Physics Letters B, 2023 We investigate production of primordial black holes from first-order electroweak phase transition in the framework of the nearly aligned Higgs effective field theory, in which non-decoupling quantum effects are properly described.
Katsuya Hashino +3 more
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Origin and growth of primordial black holes
Physics Letters B, 2021 Building on the insight that primordial black holes can arise from the formation and subsequent gravitational collapse of bound states of stable supermassive elementary particles during the early radiation era, we offer a comprehensive picture describing
Krzysztof A. Meissner, Hermann Nicolai
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European Physical Journal C: Particles and Fields, 2023 The observational data of primordial black holes and scalar-induced gravitational waves can constrain the primordial curvature perturbation at small scales. We parameterize the primordial curvature perturbation by a broken power law form and find that it
Zhu Yi, Qin Fei
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Neutrino primordial Planckian black holes
Physics Letters B, 2021 Extremal rotating black holes can be formed in the Planck energy scattering of Dirac spin parallel neutrinos in the mass state m2 (assuming m1=0), owing to the repulsive interaction between their magnetic dipoles, induced by vacuum fluctuations. Assuming
Saulo Carneiro +2 more
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Formation and Clustering of Primordial Black Holes in Brans-Dicke Theory
Universe, 2020 The formation of primordial black holes in the early universe in the Brans-Dicke scalar-tensor theory of gravity is investigated. Corrections to the threshold value of density perturbations are found.
Victor Berezin +3 more
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