Axion Inflation: Perturbative control in the strong backreaction regime

arXiv:2608.02498 · astro-ph.CO · Submitted 2026-08-03 · Read on arXiv

Valerie Domcke, Alexandros Papageorgiou, Marco Peloso, Stefan Sandner

astro-ph.CO

Submitted: 2026-08-03

Comments: 32 pages, 9 Figures

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

Terminology

• Non-Gaussianity — 10× in this paper · explained in 2 episodes
• Benchmark — 2× in this paper · explained in 2 episodes
• Diagnostic Tools — 2× in this paper · explained in 2 episodes
• Accuracy — 1× in this paper · explained in 1 episode
• Adiabatic Evolution — 1× in this paper · explained in 2 episodes
• Bispectrum — 1× in this paper · explained in 3 episodes
• Calibration — 1× in this paper · explained in 7 episodes
• Primordial Magnetic Fields — 1× in this paper · explained in 2 episodes
• Primordial non-Gaussianity — 1× in this paper · explained in 2 episodes
• Regularization — 1× in this paper · explained in 3 episodes
• Reheating — 1× in this paper · explained in 2 episodes

Sources

• Large Nongaussianity in Axion Inflation
• Phenomenology of a Pseudo-Scalar Inflaton: Naturally Large Nongaussianity
• Parity violation in the Cosmic Microwave Background from a pseudoscalar inflaton
• Particle production during inflation and gravitational waves detectable by ground-based interferometers
• Gauge Field Production in Axion Inflation: Consequences for Monodromy, non-Gaussianity in the CMB, and Gravitational Waves at Interferometers
• Primordial gravitational waves for universality classes of pseudoscalar inflation
• Parity violating gravitational waves at the end of inflation
• Scale-dependent chirality as a smoking gun for Abelian gauge fields during inflation
• Gauge field production in SUGRA inflation: local non-Gaussianity and primordial black holes
• Axion inflation with gauge field production and primordial black holes
• Gravitational waves at interferometer scales and primordial black holes in axion inflation
• Gravitational Wave signatures of inflationary models from Primordial Black Hole Dark Matter
• Inflation and Primordial Black Holes
• Naturally inflating on steep potentials through electromagnetic dissipation
• Resonant backreaction in axion inflation
• Revisiting primordial black hole dark matter from axion inflation
• Lattice study of primordial black hole formation in bumpy axion inflation
• Instability in axion inflation with strong backreaction from gauge modes
• A numerical study of pseudoscalar inflation with an axion-gauge field coupling
• Dissipative Axial Inflation

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