Induced gravitational waves from the cosmic coincidence

Abstract

The induced gravitational wave (GW) background from enhanced primordial scalar perturbations is one of the most promising observational consequences of primordial black hole (PBH) formation from inflation. We investigate the induced GW spectrum ${\Omega }_{\text{IGW}}$ from single-field inflation in the general ultra-slow-roll (USR) framework, restricting the peak frequency band to be inside $10^{-3}$-$1$ Hz and saturating PBH abundance to comprise all dark matter (DM) in the ultralight asteroid-mass window. By invoking successful baryogenesis driven by USR inflation, we verify the viable parameter space for the specific density ratio between baryons and PBH DM observed today, the so-called "cosmic coincidence." We show that the cosmic coincidence requirement bounds the spectral index $n_{\mathrm{UV}}$ in the high frequency limit, ${\Omega }_{\text{IGW}}(f\gg 1)\propto f^{-2n_{\mathrm{UV}}}$, into $0<n_{\mathrm{UV}}<1$, which implies that baryogenesis triggered by USR inflation for PBHs in the mass range of $10^{-16}$-$10^{-12}{M}_{\odot }$ can be tested by upcoming Advanced LIGO and Virgo data and next generation experiments such as LISA, Einstein Telescope, TianQin and DECIGO.

v3: updated based on referee feedback 27 pages, 5 figures

References in corpus (32)

• Laser Interferometer Space Antenna
• Primordial Black Holes as Dark Matter
• Primordial Black Holes as Dark Matter: Recent Developments
• Gravitational Wave Spectrum Induced by Primordial Scalar Perturbations
• The cosmological gravitational wave background from primordial density perturbations
• Primordial Black Holes as a dark matter candidate
• Upper Limits on the Isotropic Gravitational-Wave Background from Advanced LIGO's and Advanced Virgo's Third Observing Run
• Gravitational Wave signatures of inflationary models from Primordial Black Hole Dark Matter
• Gravitational Waves Induced by Scalar Perturbations with a Lognormal Peak
• PBHs and secondary GWs from ultra slow roll and punctuated inflation
• Induced gravitational waves as a probe of thermal history of the universe
• Constraints on the induced gravitational wave background from primordial black holes
• Non-Gaussianity and the induced gravitational wave background
• Oscillations in the stochastic gravitational wave background from sharp features and particle production during inflation
• Observable Spectra of Induced Gravitational Waves from Inflation
• Non-Gaussian tail of the curvature perturbation in stochastic ultra-slow-roll inflation: implications for primordial black hole production
• Ultra-slow-roll inflation with quantum diffusion
• Science with the TianQin Observatory: Preliminary Results on Stochastic Gravitational-Wave Background
• Probing non-Gaussianities with the high frequency tail of induced gravitational waves
• Stochastic gravitational-wave background as a tool to investigate multi-channel astrophysical and primordial black-hole mergers
• Primordial black holes as dark matter and gravitational waves from bumpy axion inflation
• Accounting for scalar non-Gaussianity in secondary gravitational waves
• Stochastic inflationary dynamics beyond slow-roll and consequences for primordial black hole formation
• Resonant features in the stochastic gravitational wave background
• The Maximal Amount of Gravitational Waves in the Curvaton Scenario
• Could PBHs and secondary GWs have originated from squeezed initial states?
• A Back-reaction Induced Lower Bound on the Tensor-to-Scalar Ratio
• Primordial black holes from temporally enhanced curvature perturbation
• The cosmic coincidences of primordial-black-hole dark matter
• Baryogenesis from ultra-slow-roll inflation
• Stochastic Baryogenesis
• Primordial blackholes from Gauss-Bonnet-corrected single field inflation

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• Galileon inflation evades the no-go for PBH formation in the single-field framework
• Hybrid $\alpha$-attractors, primordial black holes and gravitational wave backgrounds
• Baryogenesis, Primordial Black Holes and MHz-GHz Gravitational Waves
• One loop to rule them all: Perturbativity in the presence of ultra slow-roll dynamics
• Primordial black holes and gravitational waves from non-canonical inflation
• Primordial black hole dark matter from inflation: the reverse engineering approach
• Curbing PBHs with PTAs
• Constraints on primordial black holes from LIGO-Virgo-KAGRA O3 events
• Observational imprints of enhanced scalar power on small scales in ultra slow roll inflation and associated non-Gaussianities
• Induced gravitational waves from slow-roll inflation after an enhancing phase
• Planck Constraints and Gravitational Wave Forecasts for Primordial Black Hole Dark Matter Seeded by Multifield Inflation
• Primordial non-Gaussianity as a saviour for PBH overproduction in SIGWs generated by Pulsar Timing Arrays for Galileon inflation
• Realisation of the ultra-slow roll phase in Galileon inflation and PBH overproduction
• Enhanced Curvature Perturbation and Primordial Black Hole Formation in Two-stage Inflation with a break
• Loop contributions to the scalar power spectrum due to quartic order action in ultra slow roll inflation
• Large fluctuations and Primordial Black Holes
• Primordial black holes and induced gravitational waves from double-pole inflation
• Observing nulling of primordial correlations via the 21 cm signal
• Obviating PBH overproduction for SIGWs generated by Pulsar Timing Arrays in loop corrected EFT of bounce
• Fitting power spectrum of scalar perturbations for primordial black hole production during inflation
• Magnetogenesis with gravitational waves and primordial black hole dark matter
• Constraints on ultra-slow-roll inflation from the third LIGO-Virgo observing run
• Sudden braking and turning with a two-field potential bump: primordial black hole formation
• Scalar induced gravitational waves from Chern-Simons gravity during inflation era
• 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
• Black holes and gravitational waves from phase transitions in realistic models
• The Irrelevance of Primordial Black Hole Clustering in the LVK mass range
• Primordial Black Holes from Effective Field Theory of Stochastic Single Field Inflation at NNNLO
• Negative non-Gaussianity as a salvager for PBHs with PTAs in bounce
• Scalar induced gravitational waves in chiral scalar-tensor theory of gravity
• Constraining a disformal Schwarzschild black hole in DHOST theories with the orbit of the S2 star
• Beware of the running $n_s$ when producing heavy primordial black holes
• Scalar-induced gravitational waves in spatially covariant gravity