Primordial black holes and inflation from double-well potentials

Abstract

We investigate the formation of large peaks in the inflationary curvature power spectrum from double-well potentials. In such scenarios, the initial CMB spectrum is created at large field values. Subsequently, the inflaton will cross one of the minima and will decelerate rapidly as it reaches the local maximum at the origin, either falling back or crossing it. During this final phase, a significant peak in the curvature power spectrum can be generated. Our analysis reveals that this class of models produces more pronounced peaks than the more commonly studied quasi-inflection point scenarios with less tuning for the model parameters. Finally, we construct an explicit theoretically motivated inflationary scenario that is consistent with the latest CMB observations and capable of generating sufficiently large curvature perturbations for primordial black holes.

23 pages, 5 figures, matches the published version

References in corpus (46)

• The Standard Model Higgs boson as the inflaton
• GWTC-3: Compact Binary Coalescences Observed by LIGO and Virgo During the Second Part of the Third Observing Run
• Laser Interferometer Space Antenna
• BICEP / Keck XIII: Improved Constraints on Primordial Gravitational Waves using Planck, WMAP, and BICEP/Keck Observations through the 2018 Observing Season
• The Unity of Cosmological Attractors
• Primordial black hole dark matter from single field inflation
• The International Pulsar Timing Array second data release: Search for an isotropic Gravitational Wave Background
• On the evidence for a common-spectrum process in the search for the nanohertz gravitational-wave background with the Parkes Pulsar Timing Array
• Common-red-signal analysis with 24-yr high-precision timing of the European Pulsar Timing Array: Inferences in the stochastic gravitational-wave background search
• Primordial black hole formation in the radiative era: investigation of the critical nature of the collapse
• The Threshold for Primordial Black Hole Formation: a Simple Analytic Prescription
• Two populations of LIGO-Virgo black holes
• Searching for a subpopulation of primordial black holes in LIGO/Virgo gravitational-wave data
• Inflation and Primordial Black Holes
• Primordial seeds of supermassive black holes
• Curvature profiles as initial conditions for primordial black hole formation
• Constraints on the induced gravitational wave background from primordial black holes
• Constraining the primordial black hole scenario with Bayesian inference and machine learning: the GWTC-2 gravitational wave catalog
• Primordial non-gaussianity up to all orders: theoretical aspects and implications for primordial black hole models
• Observable Spectra of Induced Gravitational Waves from Inflation
• Accelerating early massive galaxy formation with primordial black holes
• Single-field inflation, anomalous enhancement of superhorizon fluctuations, and non-Gaussianity in primordial black hole formation
• Non-Gaussian tail of the curvature perturbation in stochastic ultra-slow-roll inflation: implications for primordial black hole production
• Anatomy of single-field inflationary models for primordial black holes
• Non-perturbative non-Gaussianity and primordial black holes
• PBH formation in EFT of single field inflation with sharp transition
• Quantum loop effects on the power spectrum and constraints on primordial black holes
• Implications of stochastic effects for primordial black hole production in ultra-slow-roll inflation
• Supermassive black holes from primordial black hole seeds
• Prospective Sensitivities of Atom Interferometers to Gravitational Waves and Ultralight Dark Matter
• No-go for the formation of heavy mass Primordial Black Holes in Single Field Inflation
• Did JWST observe imprints of axion miniclusters or primordial black holes?
• Revisiting small-scale fluctuations in $\alpha$-attractor models of inflation
• Search for scalar induced gravitational waves in the International Pulsar Timing Array Data Release 2 and NANOgrav 12.5 years datasets
• Primordial black holes from single-field inflation: a fine-tuning audit
• Primordial black holes and oscillating gravitational waves in slow-roll and slow-climb inflation with an intermediate non-inflationary phase
• Primordial black hole formation in inflationary $\alpha$-attractor models
• The Primordial Black Hole Formation from Single-Field Inflation is Not Ruled Out
• Stochastic constant-roll inflation and primordial black holes
• The Primordial Black Hole Formation from Single-Field Inflation is Still Not Ruled Out
• Consistency conditions and primordial black holes in single field inflation
• Large curvature perturbations near horizon crossing in single-field inflation models
• E-models of inflation and primordial black holes
• Primordial black holes and induced gravitational waves from double-pole inflation
• Uphill inflation
• Observing nulling of primordial correlations via the 21 cm signal

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• Curbing PBHs with PTAs
• Primordial non-Gaussianity from ultra slow-roll Galileon inflation
• Constraints on primordial black holes from LIGO-Virgo-KAGRA O3 events
• 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
• Regularized-Renormalized-Resummed loop corrected power spectrum of non-singular bounce with Primordial Black Hole formation
• Untangling PBH overproduction in $w$-SIGWs generated by Pulsar Timing Arrays for MST-EFT of single field inflation
• Mechanisms for producing Primordial Black Holes from Inflationary Models Beyond Fine-Tuning
• Primordial Black Holes from Effective Field Theory of Stochastic Single Field Inflation at NNNLO
• $\tilde{\xi }$-attractors in metric-affine gravity
• Negative non-Gaussianity as a salvager for PBHs with PTAs in bounce
• Beware of the running $n_s$ when producing heavy primordial black holes
• Generating large primordial fluctuations in single-field inflation for PBH formation
• Nonlinear dynamics of oscillons and transients during preheating after single field inflation