# Detecting axions via induced electron spin precession

## TL;DR

This paper proposes a novel method to detect axion-like particles by observing induced electron spin precession enhanced by electric fields, potentially detectable with SQUID magnetometers.

## Contribution

It introduces a new detection approach for ALP dark matter based on electron spin dynamics influenced by axion interactions and external electric fields.

## Key findings

- Spin precession induced by axions can produce measurable magnetic flux changes.
- External electric fields enhance the axion-induced spin precession signal.
- Potential for detection using existing SQUID magnetometer technology.

## Abstract

We propose a new window to detect axion-like particle (ALP) dark matter from electrically charged fermions, such as electrons and quarks. We specifically consider a direct interaction between the axion and the electron and find that the non-relativistic quantum dynamics induces a spin precession due to the axion and is enhanced by the application of an external electric field. This precession gives a change in magnetic flux which under certain circumstances can yield a detectable signal for SQUID magnetometers.