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HRL Laboratories has demonstrated a significant milestone in scalable quantum computing by integrating a custom CMOS controller and high-density superconducting ribbon cable directly within the cryostat. This architecture enables an 18-qubit processor to autonomously perform error correction while preserving fragile qubit states through efficient heat management, addressing critical bottlenecks for future scaling.

Source coveringQuantum Zeitgeist

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HRL Ribbon Cable Preserves Qubit States in Self-Controlling Processor

Quantum ZeitgeistJuly 30, 20263 min read

HRL Laboratories published results demonstrating a quantum processor that runs itself, replacing racks of external electronics with a custom control chip near the qubits. A high-density superconducting ribbon cable preserves the qubits’ fragile quantum states, enabling the 18-qubit devices to autonomously run error correction.

HRL Laboratories reports demonstrating a self-operating quantum processor, a critical step toward scalable quantum computing. The team overcame a major hurdle by replacing racks of external control electronics with a custom CMOS controller operating at, 450°F, enabling autonomous error correction for its 18-qubit device. A new high-density superconducting ribbon cable preserves fragile qubit…

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