In brief Caltech trapped 6,100 cesium atoms as qubits, the largest neutral-atom quantum system to date. Qubits stayed coherent for 13 seconds with 99.98% operational accuracy, defying scaling trade-offs. The team moved atoms across the array while keeping them in superposition. Caltech physicists have created the largest neutral-atom quantum computer to date, trapping 6,100 cesium atoms as qubits in a single array. The result, published in Nature on Thursday, represents a significant increase ov...