Exact bispectra in strongly mixed multifield inflation

arXiv:2609.38167 · hep-th, astro-ph.CO · Submitted 2026-09-29 · Read on arXiv

hep-th, astro-ph.CO

Submitted: 2026-09-29

Updated: 2026-09-29

Project page: https://lucaspinolcnrs.github.io/exact-collider

Terminology

• Bispectrum — 29× in this paper · explained in 3 episodes
• Non-Gaussianity — 6× in this paper · explained in 2 episodes
• Consistency — 4× in this paper · explained in 3 episodes
• Decoupling — 4× in this paper · explained in 2 episodes
• Core — 3× in this paper · explained in 2 episodes
• Degeneracy — 3× in this paper · explained in 3 episodes
• Primordial non-Gaussianity — 3× in this paper · explained in 2 episodes
• Verification — 3× in this paper · explained in 2 episodes
• ACT Data — 2× in this paper · explained in 1 episode
• Reheating — 2× in this paper · explained in 2 episodes
• Agentic Coding — 1× in this paper · explained in 1 episode
• Alternation — 1× in this paper · explained in 1 episode
• Clustering — 1× in this paper · explained in 2 episodes
• Effective Field Theory (EFT) — 1× in this paper · explained in 2 episodes
• Mode Collapse — 1× in this paper · explained in 2 episodes
• Quantum fluctuations — 1× in this paper · explained in 2 episodes
• Redundancy — 1× in this paper · explained in 2 episodes
• Scaling Laws — 1× in this paper · explained in 4 episodes
• Self-consistency — 1× in this paper · explained in 2 episodes
• Trace — 1× in this paper · explained in 2 episodes

Sources

• Planck 2018 results. X. Constraints on inflation
• Inflation and String Theory
• The Effective Field Theory of Inflation
• The Effective Field Theory of Multifield Inflation
• Effective field theory approach to quasi-single field inflation and effects of heavy fields
• The effective field theory of multi-field inflationary fluctuations
• Mass hierarchies and non-decoupling in multi-scalar field dynamics
• Features of heavy physics in the CMB power spectrum
• On the importance of heavy fields during inflation
• Primordial fluctuations and non-Gaussianities in sidetracked inflation
• Primordial Non-Gaussianities from Inflation Models
• Primordial Non-Gaussianity
• Large non-Gaussianities with Intermediate Shapes from Quasi-Single Field Inflation
• Quasi-Single Field Inflation and Non-Gaussianities
• Quasi-Single Field Inflation with Large Mass
• Signatures of Supersymmetry from the Early Universe
• Non-Gaussianity as a Particle Detector
• The Cosmological Bootstrap: Inflationary Correlators from Symmetries and Singularities
• The Cosmological Bootstrap: Weight-Shifting Operators and Scalar Seeds
• Boostless Cosmological Collider Bootstrap

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