Work

axionbloch: An Open-Source Python Package for Simulating Axion-Induced Spin Dynamics

Year: 2026

Type: software-paper

Abstract: The interaction of ultralight bosonic dark matter with spins can be interpreted as a pseudomagnetic field acting on normal matter. Such interactions can be modeled as usual magnetic interactions using spin-evolution (Bloch) equations. axionbloch, an open-source Python package for simulating spin dynamics induced by both usual and exotic interactions, is presented. The numerical simulations serve as a tool for deriving axion signal signatures, which are crucial for designing experimental searches and data analysis. Simulations are calibrated against theoretical expectations, ensuring the accuracy of the simulated signals. axionbloch is available on GitHub, allowing researchers to simulate pseudomagnetic signals under specific configurations of axion models and experimental setups. The package is documented on Read the Docs and includes example scripts for application.

Source: Universe

DOI: 10.3390/universe12110328

Author: Yuzhe Zhang

Institutions: GSI Helmholtz Centre for Heavy Ion Research, Johannes Gutenberg University Mainz, Helmholtz Institute Mainz

Language: English

Topic: Dark Matter and Cosmic Phenomena

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,930

Funder: Deutsche Forschungsgemeinschaft