Primordial Correlators from a Kaluza-Klein Graviton Continuum

arXiv:2608.01762 · hep-th, astro-ph.CO, gr-qc, hep-ph · Submitted 2026-08-03 · Read on arXiv

Shuntaro Aoki

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

Submitted: 2026-08-03

Comments: 48pages, 7 figures

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

Terminology

• Quantization — 4× in this paper · explained in 12 episodes
• Bispectrum — 2× in this paper · explained in 3 episodes
• Non-Gaussianity — 2× in this paper · explained in 2 episodes
• Regularization — 2× in this paper · explained in 3 episodes
• Primordial non-Gaussianity — 1× in this paper · explained in 2 episodes

Sources

• Quasi-Single Field Inflation and Non-Gaussianities
• Signatures of Supersymmetry from the Early Universe
• Effective field theory approach to quasi-single field inflation and effects of heavy fields
• Cosmological Collider Physics
• The Cosmological Bootstrap: Inflationary Correlators from Symmetries and Singularities
• The Cosmological Bootstrap: Weight-Shifting Operators and Scalar Seeds
• Boostless Cosmological Collider Bootstrap
• Cosmological Bootstrap in Slow Motion
• Closed-Form Formulae for Inflation Correlators
• Cosmological Correlators with Double Massive Exchanges: Bootstrap Equation and Phenomenology
• Analytic Formulae for Inflationary Correlators with Dynamical Mass
• Massive Inflationary Amplitudes: Differential Equations and Complete Solutions for General Trees
• The Exact and Approximate Tales of Boost-Breaking Cosmological Correlators
• Phase Information in Cosmological Collider Signals
• Helical Inflation Correlators: Partial Mellin-Barnes and Bootstrap Equations
• Cosmological Correlators at the Loop Level
• Dispersive Bootstrap of Massive Inflation Correlators
• Fermionic Bubble Loop in Cosmological Collider Revisited: Exact signals from spectral and Mellin-Barnes methods
• Bootstrapping One-Loop Inflation Correlators with the Spectral Decomposition
• The K\"all'en-Lehmann representation in de Sitter spacetime

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