axion_em_gr
axion_em_gr is a Python package for exploratory numerical studies of
axion-Maxwell dynamics on fixed 3+1 backgrounds.
The package is designed around a modular architecture for grids, field states, background geometries, physical sources, diagnostics, evolution schemes, and post-processing. Its goal is to provide a flexible research tool for testing reduced models of axion electrodynamics in relativistic astrophysical environments.
Main features
- Modular Python architecture.
- Fixed-background 3+1 geometries.
- Axion and electromagnetic field evolution.
- Diagnostic tools for constraints and field invariants.
- YAML-based configuration and reproducible runs.
- Plotting and post-processing utilities for scientific visualization.
Example simulation
The video below shows an example exploratory simulation produced with
axion_em_gr, illustrating the evolution of axion-electromagnetic fields in a
fixed 3+1 background.
axion_em_gr. The animation illustrates the qualitative response
of the axion and electromagnetic fields in a fixed relativistic background.