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Caltech Unveils 6,100 Qubit Array with 99.98% Accuracy

9/28/2025

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Summary

Story summary

Caltech physicists unveil the largest neutral-atom qubit array, featuring 6,100 qubits.
Published in Nature, the work reports 13 seconds of superposition.
Qubits operate at 99.98% accuracy; Defense Advanced Research Projects Agency (DARPA) and National Science Foundation (NSF) funded the project.
Using optical tweezers, cesium atoms are trapped; 12,000 tweezers split from a laser, enabling shuttling across the array.

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Story summary

Caltech physicists unveil the largest neutral-atom qubit array, featuring 6,100 qubits.
Published in Nature, the work reports 13 seconds of superposition.
Qubits operate at 99.98% accuracy; Defense Advanced Research Projects Agency (DARPA) and National Science Foundation (NSF) funded the project.
Using optical tweezers, cesium atoms are trapped; 12,000 tweezers split from a laser, enabling shuttling across the array.