README.md

2025ACLB

Codex/ChatGPT (July 2026)

Summary

This paper proposes an in situ axion generation and detection scheme based on laser-plasma wakefield interactions. In the proposed setup, the strong electromagnetic fields in a wakefield drive axion production through the Primakoff process, replacing the conventional axion-generation stage in light-shining-through-a-wall concepts. The wakefield fields can exceed $10^{11},\mathrm{V/m}$, which the authors estimate can enhance axion production rates by about two orders of magnitude relative to conventional configurations. For axion masses below $0.1,\mathrm{meV}$, the scheme could probe axion--photon coupling near $g_{a\gamma\gamma}\sim10^{-10},\mathrm{GeV}^{-1}$. The same plasma environment can also convert generated axions back into photons, producing axion-regenerated electromagnetic fields with distinctive polarization, frequency, and transverse-mode signatures. By filtering these regenerated fields from the background laser and plasma signals, the method offers a compact plasma-based route for axion searches that couples generation and detection in one interaction region.

Contributions

1. Proposed laser-plasma wakefield interaction as an in situ source and detector for axions.
2. Used the Primakoff process in wakefield electromagnetic fields to enhance axion production.
3. Estimated roughly two orders of magnitude higher production rates than conventional light-shining-through-a-wall generation stages.
4. Identified sensitivity to $g_{a\gamma\gamma}\sim10^{-10},\mathrm{GeV}^{-1}$ for sub-$0.1,\mathrm{meV}$ axion masses.
5. Described axion-regenerated electromagnetic-field signatures in polarization, frequency, and transverse mode structure.