Amnesia in the Axion Misalignment Landscape

arXiv:2608.04139 · hep-ph, astro-ph.CO, hep-th · Submitted 2026-08-04 · Read on arXiv

Kierthika Chathirathas, Cem Eröncel, Mathieu Kaltschmidt, Javier Redondo, Kenichi Saikawa

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

Submitted: 2026-08-04

Comments: Main letter: 5 pages, 5 figures. SupM: 26 pages, 14 additional figures. Comments welcome!

Code: https://github.com/veintemillas/jaxions

Project page: https://cajohare.github.io/AxionLimits

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

Terminology

• Abundance — 27× in this paper · explained in 1 episode
• Core — 10× in this paper · explained in 2 episodes
• Fine-Tuning — 7× in this paper · explained in 5 episodes
• Decoupling — 4× in this paper · explained in 2 episodes
• Topological Defects — 2× in this paper · explained in 2 episodes
• Clustering — 1× in this paper · explained in 2 episodes
• Cooperation — 1× in this paper · explained in 2 episodes
• Quantum fluctuations — 1× in this paper · explained in 2 episodes
• RAG — 1× in this paper · explained in 3 episodes
• Weak Lensing — 1× in this paper · explained in 2 episodes

Sources

• The COSMIC WISPers White Paper: The physics case for Weakly Interacting Slim Particles
• Cosmology of axion dark matter
• Axion Cosmology
• Axion Cosmology
• Experimental Searches for the Axion and Axion-like Particles
• New experimental approaches in the search for axion-like particles
• New Technologies for Axion and Dark Photon Searches
• Searching for the QCD Dark Matter Axion
• The meV mass frontier of axion physics
• Axions at the meV Crossroads: Theory, Cosmology, Astrophysics, and Experiments
• Axion Kinetic Misalignment Mechanism
• New Perspectives on Axion Misalignment Mechanism
• ALP Dark Matter from Kinetic Fragmentation: Opening up the Parameter Window
• ALP Dark Matter Mini-Clusters from Kinetic Fragmentation
• The Large-Misalignment Mechanism for the Formation of Compact Axion Structures: Signatures from the QCD Axion to Fuzzy Dark Matter
• More Axion Stars from Strings
• Non-Linear Axion Dynamics and Formation of Cosmological Pseudo-Solitons
• Early seeds of axion miniclusters
• Miniclusters from axion string simulations
• Lattice QCD for Cosmology

Related papers

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• Higgsino Dark Matter Interpretation of the LUX-ZEPLIN 248 keV Nuclear-Recoil Event
• A Unified Bogoliubov Approach to Primordial Gravitational Waves: From Inflation to Reheating
• Probing Memory-Burdened Primordial Black Holes with High-Energy Neutrinos
• Enhanced Dark Matter Quantum Sensing via Phase-Space Geometric Interferometry
• Axions as Dark Matter, Dark Energy, and Dark Radiation