Tracing out massive fields in cosmology

arXiv:2609.30370 · hep-th, astro-ph.CO, hep-ph · Submitted 2026-09-24 · Read on arXiv

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

Submitted: 2026-09-24

Updated: 2026-09-24

Terminology

• Trace — 44× in this paper · explained in 2 episodes
• Bispectrum — 33× in this paper · explained in 3 episodes
• Benchmark — 12× in this paper · explained in 2 episodes
• Non-Gaussianity — 6× in this paper · explained in 2 episodes
• Consistency — 4× in this paper · explained in 3 episodes
• Adiabatic Evolution — 3× in this paper · explained in 2 episodes
• Primordial non-Gaussianity — 3× in this paper · explained in 2 episodes
• Benchmarking — 1× in this paper · explained in 4 episodes
• Decoupling — 1× in this paper · explained in 2 episodes
• Effective Field Theory (EFT) — 1× in this paper · explained in 2 episodes
• No-Go Theorem — 1× in this paper · explained in 2 episodes
• Quantum fluctuations — 1× in this paper · explained in 2 episodes
• Stochastic Dynamics — 1× in this paper · explained in 2 episodes

Sources

• Large non-Gaussianities with Intermediate Shapes from Quasi-Single Field Inflation
• Quasi-Single Field Inflation and Non-Gaussianities
• Quantum Primordial Standard Clocks
• Effects and Detectability of Quasi-Single Field Inflation in the Large-Scale Structure and Cosmic Microwave Background
• Prospects for Cosmological Collider Physics
• Galaxy Bispectrum from Massive Spinning Particles
• Scale-Dependent Galaxy Bias from Massive Particles with Spin during Inflation
• Galaxy Bias and Primordial Non-Gaussianity
• Constraints on long-lived, higher-spin particles from galaxy bispectrum
• Planck 2018 results. IX. Constraints on primordial non-Gaussianity
• Searching for Cosmological Collider in the Planck CMB Data
• BOSS Constraints on Massive Particles during Inflation: The Cosmological Collider in Action
• Cosmological Collider Physics
• Searching for Cosmological Collider in the Planck CMB Data II: collider templates and Modal analysis
• Scalars at the Cosmological Collider: Full Shapes of Tree Diagrams and Bispectrum Searches using Planck Data
• Dissecting the Scalar Cosmological Collider with the Cosmic Microwave Background
• Dissipative effects in the Effective Field Theory of Inflation
• EFT Beyond the Horizon: Stochastic Inflation and How Primordial Quantum Fluctuations Go Classical
• An effective field theory during inflation: reduced density matrix and its quantum master equation
• An effective field theory during inflation II: stochastic dynamics and power spectrum suppression

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