# Atom Interferometry for Dark Contents of the Vacuum Searches

## TL;DR

This paper reports on the development of a cold atom interferometer using 85Rb atoms aimed at detecting dark vacuum contents and inertial sensing, highlighting current progress and observation of Ramsey fringes.

## Contribution

It introduces a novel atom interferometry setup specifically designed for dark vacuum searches and inertial sensing applications.

## Key findings

- Observation of Ramsey interference fringes in the apparatus
- Progress towards dark vacuum detection with 85Rb atoms
- Development of a new cold atom interferometry platform

## Abstract

A cold atom interferometer is being developed using 85Rb atoms towards a search for the dark contents of the vacuum, and as a test stand for inertial sensing applications. Here we outline the current status of the experiment and report the observation of Ramsey interference fringes in the apparatus.