Defect-free arrays at the thousand-atom scale in a 4-K cryogenic environment

TL;DR

This paper presents a cryogenic platform at 4 K capable of creating large, defect-free atomic arrays with over 1000 atoms, enabling advanced quantum computing experiments.

Contribution

The authors develop a cryogenic system with high numerical aperture optics that achieves long trapping lifetimes and prepares large-scale, defect-free atomic arrays for quantum applications.

Findings

Achieved trapping lifetimes of around 5000 seconds.

Prepared defect-free arrays with up to 1024 atoms.

Demonstrated compatibility with Rydberg-state manipulation.

Abstract

We report on a cryogenic platform at 4 K incorporating high numerical aperture optics for the generation of large-scale tweezers arrays, and compatible with Rydberg-state manipulation. We achieve trapping lifetimes of around 5000 s, significantly extending the available experimental time for the preparation of large-scale arrays. By combining two trapping lasers at different wavelengths and by minimizing other atom losses during the rearrangement and imaging processes, we demonstrate the preparation of defect-free arrays with up to 1024 atoms. Our cryogenic design opens exciting prospects for analog and digital quantum computing.