Natural Inflation with a negative cosmological constant

arXiv:2606.10485 · gr-qc, astro-ph.CO, hep-ph, hep-th · Submitted 2026-06-09 · Read on arXiv

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

Submitted: 2026-06-09

Updated: 2026-09-07

Comments: 14 pages, 12 figures. Accepted for publication in JCAP

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

Terminology

• Atacama Cosmology Telescope Collaboration — 2× in this paper
• Consistency — 2× in this paper · explained in 3 episodes
• Dark Energy Spectroscopic Instrument — 2× in this paper
• Aperture — 1× in this paper · explained in 1 episode
• Homogeneity — 1× in this paper · explained in 2 episodes
• Non-Gaussianity — 1× in this paper · explained in 2 episodes
• Primordial non-Gaussianity — 1× in this paper · explained in 2 episodes

Sources

• Simple Analytical Solutions of the Wheeler-DeWitt Equation in the Classical Hamilton-Jacobi Limit
• Just some simple (but nontrivial) analytical solutions for de Broglie-Bohm quantum cosmology
• Uniform Rate Inflation
• Uniform rate inflation on the brane
• Dynamical dark energy from an ultralight axion
• The Lifespan of our Universe
• Bounding axion dark energy
• Inflation with a constant rate of roll
• Hybrid Inflation
• Hybrid Natural Inflation
• A General Analytic Formula for the Spectral Index of the Density Perturbations produced during Inflation
• Super-Horizon Scale Dynamics of Multi-Scalar Inflation
• A general proof of the conservation of the curvature perturbation
• The inflationary prediction for primordial non-gaussianity
• A new approach to the evolution of cosmological perturbations on large scales
• Planck 2018 results. X. Constraints on inflation
• The Atacama Cosmology Telescope: DR6 Constraints on Extended Cosmological Models
• The Simons Observatory: forecasted constraints on primordial gravitational waves with the expanded array of Small Aperture Telescopes
• The BAO-CMB Tension and Implications for Inflation

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