HRL's Silicon Quantum Processing Unit in Nature: Integrated Cryo-CMOS Controller, Lower Error Rates
AryHHAry · x · 2026-08-19
HRL Laboratories published a paper in Nature on a silicon quantum processing unit with a 54-quantum-dot array configurable up to 18 exchange-only qubits. They integrated a cryogenic CMOS controller inside the cryostat and used high-density superconducting ribbon cables. Results: single-qubit gate error down to 1.7e-4, CNOT error average 3.5e-3, charge noise reduced 10x, and autonomous operation of distance-5 repetition code and distance-2 error-detecting code.
Related event: HRL's Silicon Quantum Processor Published in Nature(2 posts)→
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