Silicon quantum computer performs logical operations for the first time

Researchers achieved a milestone by demonstrating the first silicon-based logical quantum processor, published in Nature Nanotechnology. This breakthrough marks silicon’s transition from classical electronics to functional quantum computing hardware. The processor uses silicon spin qubits, leveraging their long coherence times and compatibility with existing semiconductor fabrication. This alignment with traditional chip technology could accelerate scalable quantum computing development. Logical operations—critical for error correction and complex computations—were performed successfully, proving silicon’s viability beyond single-qubit demonstrations. This advances fault-tolerant quantum computing goals. Silicon’s ubiquity in electronics reduces barriers to integration, offering a cost-effective path to scaling quantum systems. The material’s stability and industry familiarity further strengthen its case over alternative qubit technologies. This achievement positions silicon as a frontrunner for practical quantum computers, bridging classical infrastructure with quantum innovation. Future work may focus on expanding qubit counts and refining error correction.