Seeding primordial black holes in multifield inflation

Abstract

The inflationary origin of primordial black holes (PBHs) relies on a large enhancement of the power spectrum ${\Delta }_{\zeta }$ of the curvature fluctuation $\zeta$ at wavelengths much shorter than those of the cosmic microwave background anisotropies. This is typically achieved in models where $\zeta$ evolves without interacting significantly with additional (isocurvature) scalar degrees of freedom. However, quantum gravity inspired models are characterized by moduli spaces with highly curved geometries and a large number of scalar fields that could vigorously interact with $\zeta$ (as in the cosmological collider picture). Here we show that isocurvature fluctuations can mix with $\zeta$ inducing large enhancements of its amplitude. This occurs whenever the inflationary trajectory experiences rapid turns in the field space of the model leading to amplifications that are exponentially sensitive to the total angle swept by the turn, which induce characteristic observable signatures on ${\Delta }_{\zeta }$. We derive accurate analytical predictions and show that the large enhancements required for PBHs demand non-canonical kinetic terms in the action of the multifield system.

arXiv comment7 pages, 1 figure; v2: added clarifications around the analytic solution and references. Version accepted in PRL; v3: typo corrected, matches published version

References in corpus (72)

• Constraints on Primordial Black Holes
• Primordial Black Holes as Dark Matter
• Density Perturbations and Black Hole Formation in Hybrid Inflation
• Adiabatic and entropy perturbations from inflation
• Quasi-Single Field Inflation and Non-Gaussianities
• Primordial black holes from single field models of inflation
• Massive Primordial Black Holes from Hybrid Inflation as Dark Matter and the seeds of Galaxies
• Gravitational Waves Induced by non-Gaussian Scalar Perturbations
• Features of heavy physics in the CMB power spectrum
• Steepest growth of the power spectrum and primordial black holes
• Primordial Black Holes and Slow-Roll Violation
• Scalaron from $R^2$-gravity as a Heavy Field
• The abundance of primordial black holes depends on the shape of the inflationary power spectrum
• Scalar perturbations during multiple-field slow-roll inflation
• Cosmological Collider Physics
• Effective field theory approach to quasi-single field inflation and effects of heavy fields
• Inflationary Primordial Black Holes as All Dark Matter
• Supernatural Inflation: Inflation from Supersymmetry with No (Very) Small Parameters
• Primordial Black Hole Formation in a Double Inflation Model in Supergravity
• Primordial Black Holes from Inflation and non-Gaussianity
• Gauge field production in SUGRA inflation: local non-Gaussianity and primordial black holes
• Primordial black holes in non-Gaussian regimes
• Primordial black hole formation from an axion-like curvaton model
• The exponential tail of inflationary fluctuations: consequences for primordial black holes
• Primordial Black Holes from Sound Speed Resonance during Inflation
• Primordial Black Holes from Polynomial Potentials in Single Field Inflation
• Planck 2018 results. IX. Constraints on primordial non-Gaussianity
• Mass hierarchies and non-decoupling in multi-scalar field dynamics
• Primordial Black Holes and Local Non-Gaussianity in Canonical Inflation
• On the importance of heavy fields during inflation
• Heavy fields, reduced speeds of sound and decoupling during inflation
• Primordial black holes from the preheating instability
• Strongly Coupled Perturbations in Two-Field Inflationary Models
• Holography for inflation using conformal perturbation theory
• Primordial Black Holes from the inflating curvaton
• Curvature Perturbation Spectrum in Two-field Inflation with a Turning Trajectory
• Primordial black holes and gravitational waves from parametric amplification of curvature perturbations
• Hyperinflation
• Non-linear statistics of primordial black holes from gaussian curvature perturbations
• PBH in single field inflation: the effect of shape dispersion and non-Gaussianities
• Black hole formation and slow-roll inflation
• Turning in the landscape: a new mechanism for generating Primordial Black Holes
• Primordial black hole production due to preheating
• Dissecting the growth of the power spectrum for primordial black holes
• Black hole formation from a general quadratic action for inflationary primordial fluctuations
• Abundance of primordial black holes with local non-Gaussianity in peak theory
• Quasi Single Field Inflation in the non-perturbative regime
• Black hole constraints on the running-mass inflation model
• Axion inflation with gauge field production and primordial black holes
• De Sitter Holography and the Cosmic Microwave Background
• On the slope of curvature power spectrum in non-attractor inflation
• Probing Primordial-Black-Hole Dark Matter with Gravitational Waves
• Inflationary preheating and primordial black holes
• Formation of MACHO-Primordial Black Holes in Inflationary Cosmology
• Generating Primordial Black Holes Via Hilltop-Type Inflation Models
• Scaling attractors in multi-field inflation
• Planck-Suppressed Operators
• Hyper non-Gaussianities in inflation with strongly non-geodesic motion
• The rapid-turn inflationary attractor
• A Preferred Mass Range for Primordial Black Hole Formation and Black Holes as Dark Matter Revisited
• Cumulative effects in inflation with ultra-light entropy modes
• Strongly Coupled Quasi-Single Field Inflation
• Landscape tomography through primordial non-Gaussianity
• Shift-Symmetric Orbital Inflation: single field or multi-field?
• Quantum Primordial Standard Clocks
• Reconstructing the Inflationary Landscape with Cosmological Data
• Constraints on holographic multi-field inflation and models based on the Hamilton-Jacobi formalism
• On the integration of fields and quanta in time dependent backgrounds
• Multi-field inflation from holography
• Primordial Black Holes from non-Gaussian tails
• Multipoint correlators in multifield cosmology
• Non-Gaussian CMB and LSS statistics beyond polyspectra

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• The Gravitational-Wave Physics II: Progress
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• Scalar induced gravitational waves review
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• The Effects of Linear Matter Power Spectrum Enhancement on Dark Matter Substructure
• Primordial Black Hole Generation in a Two-field Inflationary Model
• Dynamics of Inspiraling Dark Energy
• Implications for Pulsar Timing Arrays of Sub-solar Black Hole Detections: From LVK to Einstein Telescope and Cosmic Explorer
• The holographic space-time and black hole remnants as dark matter
• On the Consistency of Rapid-Turn Inflation
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• Extended primordial black hole mass functions with a spike
• Loops in inflation with strongly non-geodesic motion
• Log-periodic gravitational-wave background beyond Einstein gravity
• Primordial blackholes from Gauss-Bonnet-corrected single field inflation
• Gravitational waves from primordial black hole dominance: The effect of inflaton decay rate
• Constant-rate inflation: primordial black holes from conformal weight transitions
• Hidden Symmetries, Rapid Turns and Cosmic Acceleration
• Inflation with vector fields revisited: heavy entropy perturbations and primordial black holes
• An accurate model for the primordial black hole mass distribution from a peak in the power spectrum
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• Cosmic Inflation From Fluctuating Baby-Skyrme Brane
• Rapid-turn inflation in supergravity is rare and tachyonic
• Consistency Condition for Slow-roll and Rapid-turn Inflation
• Primordial gravitational waves from excited states
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• Modification of T/E models and their multi-field versions
• Mimicking two field inflationary features with a single field