# Frequency responses of the K-Rb-$^{21}$Ne co-magnetometer

## TL;DR

This paper investigates the frequency response characteristics of a K-Rb-$^{21}$Ne co-magnetometer to magnetic and exotic spin-dependent forces through experimental and numerical methods, providing insights into its behavior across different frequencies.

## Contribution

It offers the first combined experimental and numerical analysis of the co-magnetometer's frequency responses to various forces, enhancing understanding of its operational dynamics.

## Key findings

- Frequency response to magnetic fields characterized.
- Phase shift and amplitude relationships mapped.
- Numerical simulations complement experimental results.

## Abstract

The frequency responses of the K-Rb-$^{21}$Ne co-magnetometer to magnetic field and exotic spin dependent forces are experimentally studied and simulated in this paper. Both the relationship between the output amplitude, the phase shift and frequencies are studied. The responses of magnetic field are experimentally investigated. Due to a lack of input methods, others are numerically simulated.