Superhorizon curvature perturbations in hybrid inflation revisited

arXiv:2606.29796 · astro-ph.CO, gr-qc, hep-ph · Submitted 2026-06-29 · Read on arXiv

Shi Pi, Anxianyi Xiong

astro-ph.CO, gr-qc, hep-ph

Submitted: 2026-06-29

Comments: 35 pages, 11 figures

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Non-Gaussianity — 11× in this paper · explained in 2 episodes
• Abundance — 7× in this paper · explained in 1 episode
• Microlensing — 2× in this paper · explained in 2 episodes
• Redundancy — 2× in this paper · explained in 2 episodes
• Consistency — 1× in this paper · explained in 3 episodes
• Fine-Tuning — 1× in this paper · explained in 5 episodes
• Gauge Freedom — 1× in this paper · explained in 2 episodes
• Nonminimal coupling — 1× in this paper · explained in 2 episodes
• Primordial Black Holes (PBHs) — 1× in this paper · explained in 7 episodes
• Primordial non-Gaussianity — 1× in this paper · explained in 2 episodes
• Stochastic Gravitational Wave Background (SGWB) — 1× in this paper · explained in 3 episodes
• Symmetry Breaking — 1× in this paper · explained in 3 episodes

Sources

• Planck 2018 results. X. Constraints on inflation
• Chaotic new inflation and formation of primordial black holes
• Gravitational waves at interferometer scales and primordial black holes in axion inflation
• Production of high stellar-mass primordial black holes in trapped inflation
• Primordial black holes from single field models of inflation
• Primordial black holes and associated gravitational waves in axion monodromy inflation
• Primordial Black Holes from $\alpha$-attractors
• Primordial black hole tower: Dark matter, earth-mass, and LIGO black holes
• Low-frequency Gravitational Waves from Double-inflection-point Inflation
• Primordial Black Holes from a tiny bump/dip in the Inflaton potential
• Primordial black holes dark matter from inflection point models of inflation and the effects of reheating
• An analytical approximation of the scalar spectrum in the ultra-slow-roll inflationary models
• Primordial black holes and oscillating gravitational waves in slow-roll and slow-climb inflation with an intermediate non-inflationary phase
• Stochastic inflation and primordial black holes
• PBHs and secondary GWs from ultra slow roll and punctuated inflation
• Double peaks of gravitational wave spectrum induced from inflection point inflation
• Primordial Black Hole Formation in Starobinsky's Linear Potential Model
• Smooth vs instant inflationary transitions: steepest growth re-examined and primordial black holes
• Inflationary $\alpha$-Attractor Models with Singular Derivative of Potential
• Dip and non-linearity in the curvature perturbation from inflation with a transient non-slow-roll stage

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