# A dual-species magneto-optical trap for lithium and strontium atoms

## TL;DR

This paper describes the development of a dual-species magneto-optical trap for ultracold lithium and strontium atoms, enabling advanced experiments with quantum mixtures.

## Contribution

The paper introduces a new experimental setup capable of simultaneously trapping and cooling lithium and strontium atoms with high atom numbers and low temperatures.

## Key findings

- Achieved ~$10^9$ lithium atoms at 700 μK
- Obtained ~$10^7$ strontium atoms at 1.8 μK
- Demonstrated a stable dual-species MOT for ultracold mixture preparation

## Abstract

We present a machine built for experiments with ultracold mixtures of strontium and lithium atoms. The machine includes a science vacuum chamber and the relevant laser systems for cooling and trapping the atoms. With this machine, we realize a D2-line compressed magneto-optical trap (MOT) for ${^6}$Li and a narrow-linewidth 689-nm MOT for $^{84}$Sr, obtaining ~$10^9$ ${^6}$Li atoms at 700 $\mu$K and ~$10^7$ $^{84}$Sr atoms at 1.8 $\mu$K. Such a dual-species MOT provides an ideal starting point for realizing double degenerate mixtures of $^6$Li and Sr atoms.