From Rags to Jeans: Axion Miniclusters from Early matter domination

arXiv:2606.19439 · hep-ph, astro-ph.CO · Submitted 2026-06-17 · Read on arXiv

Ariel Angulo, Paola Arias, Nicolás Bernal, Javier Redondo

hep-ph, astro-ph.CO

Submitted: 2026-06-17

Comments: 25+21 pages; 11 figures

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

Terminology

• Reheating — 43× in this paper · explained in 2 episodes
• Abundance — 12× in this paper · explained in 1 episode
• Core — 3× in this paper · explained in 2 episodes
• Microlensing — 3× in this paper · explained in 2 episodes
• Benchmark — 2× in this paper · explained in 2 episodes
• RAG — 2× in this paper · explained in 3 episodes
• Big Bang Nucleosynthesis — 1× in this paper
• Boltzmann Equation — 1× in this paper · explained in 2 episodes
• Consistency — 1× in this paper · explained in 3 episodes
• Gravitational Lensing — 1× in this paper · explained in 2 episodes
• Matter Power Spectrum — 1× in this paper · explained in 2 episodes
• Phase Transitions — 1× in this paper · explained in 2 episodes
• Standard Model — 1× in this paper
• Topological Defects — 1× in this paper · explained in 2 episodes

Sources

• String Axiverse
• WISPy Cold Dark Matter
• Axion Kinetic Misalignment Mechanism
• QCD Axion Kinetic Misalignment without Prejudice
• Acoustic Misalignment Mechanism for Axion Dark Matter
• Axion dark matter from frictional misalignment
• Dark matter from an even lighter QCD axion: trapped misalignment
• Trapping Effect for QCD Axion Dark Matter
• Resonant production of dark photons from axion without a large coupling
• Resonant excitation of the axion field during the QCD phase transition
• New scenario of QCD axion clump formation I: Linear analysis
• Impact of adiabatic temperature fluctuations on the power spectrum of axion density perturbations
• Axion Perturbations: A General Analytical Treatment
• Axion Miniclusters and Bose Stars
• Miniclusters in the Axiverse
• Axion Miniclusters in Modified Cosmological Histories
• Imprints of the Early Universe on Axion Dark Matter Substructure
• Largest temperature of the radiation era and its cosmological implications
• Axion cold dark matter in non-standard cosmologies
• New opportunities for axion dark matter searches in nonstandard cosmological models

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• 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