Large fluctuations and primordial black holes

S Choudhury, M Sami - Physics Reports, 2025‏ - Elsevier
In this paper, we review in detail different mechanisms of generation of large primordial
fluctuations and their implications for the production of primordial black holes (PBHs) and …

[HTML][HTML] Primordial black holes as a dark matter candidate-a brief overview

AM Green - Nuclear Physics B, 2024‏ - Elsevier
Historically the most popular dark matter candidates have been new elementary particles,
such as Weakly Interacting Massive Particles and axions. However Primordial Black Holes …

Primordial black holes

A Escrivà, F Kühnel, Y Tada - Black Holes in the Era of Gravitational-Wave …, 2024‏ - Elsevier
Primordial black holes - ScienceDirect Skip to main contentSkip to article Elsevier logo
Journals & Books Search RegisterSign in View PDF Download full book Search ScienceDirect …

Cancellation of quantum corrections on the soft curvature perturbations

Y Tada, T Terada, J Tokuda - Journal of High Energy Physics, 2024‏ - Springer
A bstract We study the cancellation of quantum corrections on the superhorizon curvature
perturbations from subhorizon physics beyond the single-clock inflation from the viewpoint of …

Primordial black holes from single-field inflation: a fine-tuning audit

PS Cole, AD Gow, CT Byrnes… - Journal of Cosmology and …, 2023‏ - iopscience.iop.org
All single-field inflationary models invoke varying degrees of tuning in order to account for
cosmological observations. Mechanisms that generate primordial black holes (PBHs) from …

Loop corrections in the separate universe picture

L Iacconi, D Mulryne, D Seery - Journal of Cosmology and …, 2024‏ - iopscience.iop.org
In inflationary models that produce a spike of power on short scales, back-reaction of small-
scale substructure onto large-scale modes is enhanced. Loop corrections that quantify this …

Non-perturbative non-Gaussianity and primordial black holes

AD Gow, H Assadullahi, JHP Jackson… - arxiv preprint arxiv …, 2022‏ - arxiv.org
We present a non-perturbative method for calculating the abundance of primordial black
holes given an arbitrary one-point probability distribution function for the primordial …

Highly non-Gaussian tails and primordial black holes from single-field inflation

YF Cai, XH Ma, M Sasaki, DG Wang… - Journal of Cosmology …, 2022‏ - iopscience.iop.org
For primordial perturbations, deviations from Gaussian statistics on the tail of the probability
distribution can be associated with non-perturbative effects of inflation. In this paper, we …

Planck constraints and gravitational wave forecasts for primordial black hole dark matter seeded by multifield inflation

W Qin, SR Geller, S Balaji, E McDonough, DI Kaiser - Physical Review D, 2023‏ - APS
We perform a Markov Chain Monte Carlo analysis of a simple yet generic multifield inflation
model characterized by two scalar fields coupled to each other and nonminimally coupled to …

Stochastic constant-roll inflation and primordial black holes

E Tomberg - Physical Review D, 2023‏ - APS
Stochastic inflation resolves primordial perturbations nonlinearly, probing their probability
distribution deep into its non-Gaussian tail. The strongest perturbations collapse into …