How light can ALP dark matter be?

arXiv:2511.15790 · hep-ph, astro-ph.CO · Submitted 2025-11-19 · Read on arXiv

hep-ph, astro-ph.CO

Submitted: 2025-11-19

Updated: 2026-08-26

Terminology

• Abundance — 40× in this paper · explained in 1 episode
• Superradiance — 21× in this paper · explained in 3 episodes
• Reheating — 18× in this paper · explained in 2 episodes
• Symmetry Breaking — 11× in this paper · explained in 3 episodes
• Domain Walls — 6× in this paper · explained in 2 episodes
• Benchmark — 3× in this paper · explained in 2 episodes
• Homogeneity — 3× in this paper · explained in 2 episodes
• Matter Power Spectrum — 2× in this paper · explained in 2 episodes
• Topological Defects — 2× in this paper · explained in 2 episodes
• Accuracy — 1× in this paper · explained in 1 episode
• Clustering — 1× in this paper · explained in 2 episodes
• Core — 1× in this paper · explained in 2 episodes
• Karlsruhe Institute of Technology — 1× in this paper
• Phase Transitions — 1× in this paper · explained in 2 episodes
• alpha — 1× in this paper · explained in 1 episode

Sources

• Axion Cosmology
• Ultralight scalars as cosmological dark matter
• Axions from Strings: the Attractive Solution
• More Axions from Strings
• Dark Matter from Axion Strings with Adaptive Mesh Refinement
• Axion Dark Matter from Cosmic String Network
• Spectrum of global string networks and the axion dark matter mass
• Axion mass prediction from adaptive mesh refinement cosmological lattice simulations
• More Scalings from Cosmic Strings
• The dark-matter axion mass
• Global cosmic string networks as a function of tension
• Long-term dynamics of cosmological axion strings
• Ultralight fuzzy dark matter review
• Miniclusters from axion string simulations
• Scaling density of axion strings in terasite simulations
• Isocurvature bounds on axion-like particle dark matter in the post-inflationary scenario
• Post-inflationary axion isocurvature perturbations facing CMB and large-scale structure
• Early Structure Formation Constraints on the Ultra-Light Axion in the Post-Inflation Scenario
• Observing Invisible Axions with Gravitational Waves
• Constraints on Dark Matter from Dynamical Heating of Stars in Ultrafaint Dwarfs. Part 2: Substructure and the Primordial Power Spectrum

Related papers

• Classification of g-modes for neutron stars with a strong transition: Novel universal relation including slow stable hybrid stars
• 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