Primordial black holes from a curvaton scenario with strongly non-Gaussian perturbations

Abstract

We investigate the production of primordial black holes (PBHs) in a mixed inflaton-curvaton scenario with a quadratic curvaton potential, assuming the curvaton is in de Sitter equilibrium during inflation with $⟨\chi ⟩=0$. In this setup, the curvature perturbation sourced by the curvaton is strongly non-Gaussian, containing no leading Gaussian term. We show that for $m^2/H^2\gtrsim 0.3$, the curvaton contribution to the spectrum of primordial perturbations on CMB scales can be kept negligible but on small scales the curvaton can source PBHs. In particular, PBHs in the asteroid mass range $10^{-16}{M}_{\odot }\lesssim M\lesssim 10^{-10}{M}_{\odot }$ with an abundance reaching $f_{\mathrm{PBH}}=1$ can be produced when the inflationary Hubble scale $H\gtrsim 10^{12}$ GeV and the curvaton decay occurs in the window from slightly before the electroweak transition to around the QCD transition.

arXiv comment12 pages + appendices, 7 figures

References in corpus (76)

• Generating the curvature perturbation without an inflaton
• Did LIGO detect dark matter?
• Primordial Black Holes as Dark Matter
• A General Analytic Formula for the Spectral Index of the Density Perturbations produced during Inflation
• Primordial Black Hole Scenario for the Gravitational-Wave Event GW150914
• Adiabatic CMB perturbations in pre-big bang string cosmology
• A new approach to the evolution of cosmological perturbations on large scales
• Effects of Cosmological Moduli Fields on Cosmic Microwave Background
• Equilibrium State of a Massless Self-Interacting Scalar Field in the De Sitter Background
• Nongaussian Isocurvature Perturbations from Inflation
• Density Perturbations and Black Hole Formation in Hybrid Inflation
• The clustering of massive Primordial Black Holes as Dark Matter: measuring their mass distribution with Advanced LIGO
• Primordial black holes from single field models of inflation
• Non-Gaussianity of the primordial perturbation in the curvaton model
• Near-Critical Gravitational Collapse and the Initial Mass Function of Primordial Black Holes
• Primordial black hole dark matter from single field inflation
• Dynamics of Primordial Black Hole Formation
• Black hole formation in the Friedmann universe: Formulation and computation in numerical relativity
• Computations of primordial black hole formation
• Primordial Black Holes and Slow-Roll Violation
• Observation of critical phenomena and self-similarity in the gravitational collapse of radiation fluid
• Threshold for primordial black holes: Dependence on the shape of the cosmological perturbations
• Primordial black hole formation in the early universe: critical behaviour and self-similarity
• Primordial Black Hole production in Critical Higgs Inflation
• Single Field Double Inflation and Primordial Black Holes
• Scalaron from $R^2$-gravity as a Heavy Field
• Primordial black hole formation in the radiative era: investigation of the critical nature of the collapse
• The abundance of primordial black holes depends on the shape of the inflationary power spectrum
• The Threshold for Primordial Black Hole Formation: a Simple Analytic Prescription
• Gravitational waves at interferometer scales and primordial black holes in axion inflation
• Primordial black holes with an accurate QCD equation of state
• Primordial Black Holes from $\alpha$-attractors
• Cosmological long-wavelength solutions and primordial black hole formation
• Primordial black holes in non-Gaussian regimes
• Primordial black hole formation from an axion-like curvaton model
• Searching for a subpopulation of primordial black holes in LIGO/Virgo gravitational-wave data
• Non-Gaussian Fluctuations and Primordial Black Holes from Inflation
• Primordial Black Holes from Inflation and Quantum Diffusion
• Non-linear metric perturbations and production of primordial black holes
• Primordial black hole formation and abundance: contribution from the non-linear relation between the density and curvature perturbation
• Primordial Black Holes from Polynomial Potentials in Single Field Inflation
• Planck constraints on the tensor-to-scalar ratio
• PBH abundance from random Gaussian curvature perturbations and a local density threshold
• Primordial non-gaussianity up to all orders: theoretical aspects and implications for primordial black hole models
• The primordial black hole formation criterion re-examined: parameterisation, timing, and the choice of window function
• Mixed inflaton and curvaton perturbations
• Primordial black holes from inflaton and spectator field perturbations in a matter-dominated era
• A Cosmological Signature of the Standard Model Higgs Vacuum Instability: Primordial Black Holes as Dark Matter
• Running-Mass Inflation Model and Primordial Black Holes
• Non-perturbative non-Gaussianity and primordial black holes
• Separate Universes Do Not Constrain Primordial Black Hole Formation
• Black hole formation from a general quadratic action for inflationary primordial fluctuations
• Analytical thresholds for black hole formation in general cosmological backgrounds
• Abundance of primordial black holes with local non-Gaussianity in peak theory
• Running Spectral Index and Formation of Primordial Black Hole in Single Field Inflation Models
• PBH dark matter from axion inflation
• Black hole constraints on the running-mass inflation model
• Formation of Black Holes from Collapsed Cosmic String Loops
• Gravitational Waves from Binary Mergers of Sub-solar Mass Dark Black Holes
• Non-Canonical Inflation and Primordial Black Holes Production
• Primordial black hole merger rates: distributions for multiple LIGO observables
• Influence of large local and non-local bispectra on primordial black hole abundance
• The stochastic spectator
• Peaks and primordial black holes: the effect of non-Gaussianity
• Effects of friction on cosmic strings
• Primordial black holes in the curvaton model: possible connections to pulsar timing arrays and dark matter
• Scalar correlation functions in de Sitter space from the stochastic spectral expansion
• Spectator field dynamics in de Sitter and curvaton initial conditions
• Primordial Black Hole Dark Matter and LIGO/Virgo Merger Rate from Inflation with Running Spectral Indices: Formation in the Matter- and/or Radiation-Dominated Universe
• Primordial Black Holes With Multi-Modal Mass Spectra
• Black hole formation in a contracting universe
• Primordial Tensor Perturbation in Double Inflationary Scenario with a Break
• Tracing Primordial Black Holes in Nonsingular Bouncing Cosmology
• Scalar correlation functions for a double-well potential in de Sitter space
• Primordial Black Holes and Co-Decaying Dark Matter
• Primordial black hole formation from non-Gaussian curvature perturbations

Cited by in corpus (9)

• Realisation of the ultra-slow roll phase in Galileon inflation and PBH overproduction
• Large fluctuations and Primordial Black Holes
• Obviating PBH overproduction for SIGWs generated by Pulsar Timing Arrays in loop corrected EFT of bounce
• The Irrelevance of Primordial Black Hole Clustering in the LVK mass range
• Mechanisms for producing Primordial Black Holes from Inflationary Models Beyond Fine-Tuning
• Primordial Black Holes without fine-tuning from a light stochastic spectator field
• Non-Gaussianities and Primordial Black Holes
• Primordial black holes from a curvaton: the role of bimodal distributions
• Purely quadratic non-Gaussianity from tachyonic instability: Primordial black holes and scalar-induced gravitational waves