# Active Control of Laser Wavefronts in Atom Interferometers

## TL;DR

This paper demonstrates the active correction of laser wavefront aberrations in atom interferometers using a deformable mirror, significantly improving the stability and accuracy of quantum sensors like atomic gravimeters.

## Contribution

It introduces an active wavefront control method with a deformable mirror to enhance atom interferometry performance, addressing a key limitation in current quantum sensors.

## Key findings

- Successful correction of wavefront aberrations in an atomic gravimeter
- Improved stability and accuracy of the interferometer
- Potential for enhanced future quantum sensor performance

## Abstract

Wavefront aberrations are identified as a major limitation in quantum sensors. They are today the main contribution in the uncertainty budget of best cold atom interferometers based on two-photon laser beam splitters, and constitute an important limit for their long-term stability, impeding these instruments from reaching their full potential. Moreover, they will also remain a major obstacle in future experiments based on large momentum beam splitters. In this article, we tackle this issue by using a deformable mirror to control actively the laser wavefronts in atom interferometry. In particular, we demonstrate in an experimental proof of principle the efficient correction of wavefront aberrations in an atomic gravimeter.