Multi-reservoir enhanced loading of tweezer atom arrays

TL;DR

This paper presents a species-independent iterative loading method using multiple reservoir tweezers to significantly improve atom loading efficiency in optical tweezer arrays, demonstrated with strontium atoms.

Contribution

The introduced method enhances atom loading efficiency in tweezer arrays, reducing time and power requirements, and is applicable across different atomic species.

Findings

Achieved 96% loading rate after four reload cycles

Demonstrated with dual wavelength $^{88}$Sr atom arrays

Potential to enable larger quantum atom arrays

Abstract

We introduce a species-independent method for improved loading into a single-atom optical tweezer array, utilizing iterative loading with multiple reservoir tweezers. Demonstrated with dual wavelength tweezer arrays of $^{88}$Sr atoms, our approach achieves a 96$\%$ loading rate after four reload cycles. This method can significantly enhance existing tweezer rearrangement protocols, potentially reducing iteration time and optical power consumption, thereby enabling a larger number of atoms in a quantum logic device.