New tweezers array builds defect-free quantum systems with 1024 atoms

Pasqal and Université Paris-Saclay have created a cryogenic system that can manipulate 1024 individual atoms within a single quantum array. The platform operates at 4 Kelvin, achieving trapping lifetimes of around 5000 seconds and extending the time available to prepare large-scale arrays. By combining two trapping lasers at different wavelengths and minimising atom losses during rearrangement and imaging, the researchers demonstrate the preparation of defect-free arrays with up to 1024 atoms, opening prospects for both analogue and digital quantum computing. This cryogenic design enables the creation of large registers essential for scaling quantum processors. Pasqal SAS, a company with facilities in Palaiseau, France, has created defect-free arrays containing up to 1024 neutral atoms, a significant step toward scalable quantum technologies. This accomplishment relies on a newly developed cryogenic platform operating at 4 Kelvin, a temperature that extends the time available for preparing these large-scale arrays. The system’s design incorporates high numerical aperture optics, enabling…