Improved model of large-field inflation with primordial black hole production in Starobinsky-like supergravity
arXiv:2401.11651 · doi:10.1088/1361-6382/ad7187
Abstract
A viable model of large-field (chaotic) inflation with efficient production of primordial black holes is proposed in Starobinsky-like (modified) supergravity leading to the "no-scale-type" Kähler potential and the Wess-Zumino-type ("renormalizable") superpotential. The cosmological tilts are in good (within ) agreement with Planck measurements of the cosmic microwave background radiation. In addition, the power spectrum of scalar perturbations has a large peak at smaller scales, which leads to a production of primordial black holes from gravitational collapse of large perturbations with the masses about g. The masses are beyond the Hawking (black hole) evaporation limit of g, so that those primordial black holes may be viewed as viable candidates for part or the whole of the current dark matter. The parameters of the superpotential were fine-tuned for those purposes, while the cubic term in the superpotential is essential whereas the quadratic term should vanish. The vacuum after inflation (relevant to reheating) is Minkowskian. The energy density fraction of the gravitational waves induced by the production of primordial black holes and their frequency were also calculated in the second order with respect to perturbations.
19 pages, 10 figures, 1 Table, LaTeX; main results unchanged, two new figures and more references added
References in corpus (27)
- The NANOGrav 15-year Data Set: Evidence for a Gravitational-Wave Background
- BICEP / Keck XIII: Improved Constraints on Primordial Gravitational Waves using Planck, WMAP, and BICEP/Keck Observations through the 2018 Observing Season
- The Swampland: Introduction and Review
- NANOGrav Hints to Primordial Black Holes as Dark Matter
- Improved limits on the tensor-to-scalar ratio using BICEP and Planck
- Gravitational Waves Induced by Scalar Perturbations with a Lognormal Peak
- Descope of the ALIA mission
- Scalaron the mighty: producing dark matter and baryon asymmetry at reheating
- Embedding (R+R^2)-Inflation into Supergravity
- Ultra-slow-roll inflation with quantum diffusion
- Quantum loop effects on the power spectrum and constraints on primordial black holes
- Cosmological Attractor Models and Higher Curvature Supergravity
- Implications of stochastic effects for primordial black hole production in ultra-slow-roll inflation
- Constraining Primordial Black Hole Formation from Single-Field Inflation
- Oscillations in the inflaton potential?
- Breakdown of Hawking Evaporation opens new Mass Window for Primordial Black Holes as Dark Matter Candidate
- Primordial Black Holes from Multifield Inflation with Nonminimal Couplings
- Primordial black hole dark matter in dilaton-extended two-field Starobinsky inflation
- Superstring-inspired supergravity as the universal source of inflation and quintessence
- On the equivalence between Starobinsky and Higgs inflationary models in gravity and supergravity
- Testing Primordial Black Holes as Dark Matter in Supergravity from Gravitational Waves
- Starobinsky Inflation from String Theory?
- Fitting power spectrum of scalar perturbations for primordial black hole production during inflation
- Pole inflation and primordial black holes formation in Starobinsky-like supergravity
- The Timescales of Quantum Breaking
- Quantum loop corrections in the modified gravity model of Starobinsky inflation with primordial black hole production
- Quantum diffusion and large primordial perturbations from inflation