The effect of multiple features on the power spectrum in two-field inflation

DOI10.1088/1475-7516/2022/08/021OpenAlexW4221164507MaRDI QIDQ5101130

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Publication date: 2 September 2022

Published in: Journal of Cosmology and Astroparticle Physics (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/2203.15605

zbMATH Keywords

inflationprimordial black holesprimordial gravitational waves (theory)

Mathematics Subject Classification ID

Black holes (83C57) Geometrodynamics and the holographic principle (83E05) Perturbations in context of PDEs (35B20) Methods of global Riemannian geometry, including PDE methods; curvature restrictions (53C21) Gravitational waves (83C35)

Related Items (5)

The inflaton that could: primordial black holes and second order gravitational waves from tachyonic instability induced in Higgs-R²inflation ⋮ Hybrid α-attractors, primordial black holes and gravitational wave backgrounds ⋮ Primordial stochastic gravitational wave backgrounds from a sharp feature in three-field inflation. Part I. The radiation era ⋮ Sharp turns in axion monodromy: primordial black holes and gravitational waves ⋮ Log-periodic gravitational-wave background beyond Einstein gravity

Cites Work

• Primordial gravitational waves from excited states
• Features and new physical scales in primordial observables: Theory and observation
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• Gravitational waves from density perturbations in an early matter domination era
• Amplification of primordial perturbations from the rise or fall of the inflaton
• Scaling attractors in multi-field inflation
• On the slope of the curvature power spectrum in non-attractor inflation
• Rollercoaster cosmology
• Generating PBHs and small-scale GWs in two-field models of inflation
• Gravitational waves induced by scalar perturbations with a lognormal peak
• Oscillations in the stochastic gravitational wave background from sharp features and particle production during inflation
• Revisiting small-scale fluctuations in α-attractor models of inflation
• Primordial black holes from α-attractors

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