# Optomechanical resonator-enhanced atom interferometry

## TL;DR

This paper presents a hybrid quantum sensor combining atom interferometry and optomechanical spectroscopy, enabling stable measurements in noisy environments and enhancing the capabilities of quantum sensors.

## Contribution

It introduces a novel method that integrates atom interferometry with optomechanical resonator spectroscopy, overcoming limitations of each technique individually.

## Key findings

- Successful measurement of mirror and matter wave motion in noisy environments
- Enhanced stability and dynamic range of quantum sensors
- Potential for significant improvements through quantum engineering

## Abstract

Matter-wave interferometry and spectroscopy of optomechanical resonators offer complementary advantages. Interferometry with cold atoms is employed for accurate and long-term stable measurements, yet it is challenged by its dynamic range and cyclic acquisition. Spectroscopy of optomechanical resonators features continuous signals with large dynamic range, however it is generally subject to drifts. In this work, we combine the advantages of both devices. Measuring the motion of a mirror and matter waves interferometrically with respect to a joint reference allows us to operate an atomic gravimeter in a seismically noisy environment otherwise inhibiting readout of its phase. Our method is applicable to a variety of quantum sensors and shows large potential for improvements of both elements by quantum engineering.