Overview

• Caltech’s Endres Lab trapped 6,100 cesium atoms as qubits in a single reconfigurable array, the largest neutral-atom system reported to date.
• The array maintained superposition for about 13 seconds and delivered 99.98% single‑qubit operation fidelity, nearing best-in-class control at unprecedented scale.
• Researchers split a single laser into roughly 12,000 optical tweezer traps inside an ultra‑high‑vacuum chamber to stably hold and address individual atoms.
• The team moved atoms within the array without collapsing their quantum state, demonstrating dynamic reconfigurability that could aid future error correction.
• The platform is not yet fault‑tolerant, with next goals focused on entangling thousands of qubits and implementing scalable error‑correction as the wider field pursues multiple hardware approaches.