GM-backed HRL demonstrates silicon quantum processor with autonomous error correction inside cryostat
GM•Error correction and scalability results
HRL reported control errors about 10x lower than prior demonstrations for this qubit type, with sub-microsecond operations.
Error rates fell roughly 5x as more qubits were added to a repetition code, supporting scalability claims for the control approach.
HRL publishes Nature results on silicon quantum processor
GM-backed HRL Laboratories published Nature results on a silicon quantum processor that autonomously runs error correction inside a cryostat.
A custom CMOS controller operated at -450°F near the qubits, replacing racks of room-temperature control electronics for an 18-qubit device. The architecture used a high-density superconducting ribbon cable to deliver hundreds of control signals while limiting heat transfer to colder qubits.
