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Hitachi develops high-precision silicon qubit control for large-scale quantum computing
Wednesday, February 25, 2026 at 06:40 AM
Hitachi has developed a method to control qubits with high precision using silicon materials, a step toward large-scale silicon quantum computing manufacturing. The technology leverages existing semiconductor manufacturing processes to improve scalability.
Context
Hitachi has achieved a breakthrough in large-scale quantum computing by developing high-precision control technologies for silicon-based qubits. The company implemented a novel digital control method to reduce wiring complexity alongside a noise-suppressing phase-modulation technique. These advancements address critical hardware bottlenecks for scaling quantum processors within existing semiconductor fabrication environments.
The new methods pushed gate fidelity from 95% to 99.1%, reaching the threshold necessary for practical error correction. By utilizing standard silicon materials, Hitachi leverages existing semiconductor supply chains to facilitate future mass production. This approach is specifically designed to support systems scaling toward 1 million qubits, potentially outperforming current superconducting architectures in density and cost-effectiveness.
Strategic timing points to a commercial rollout in the near term, with Hitachi targeting the launch of a silicon quantum computing cloud service by 2027. This positions the firm as a primary contender in the global race for fault-tolerant computing, offering a scalable roadmap for high-impact industries such as finance, drug discovery, and logistics.
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