Scientists overcome a hidden obstacle to more powerful quantum computers
Researchers at the RIKEN Center for Emergent Matter Science have developed a technique to maintain high-fidelity control over multiple silicon spin qubits simultaneously. This breakthrough addresses a major error-correction hurdle in scaling up silicon-based quantum processors.
Why it matters
Improving the precision of simultaneous qubit operations is a critical step toward building practical, large-scale quantum computers using existing semiconductor manufacturing.
Silicon spin qubits could play a major role in the future of quantum computing because they can be produced using the same semiconductor manufacturing methods that make today's computer chips. However, researchers have faced a significant challenge. When multiple silicon qubits are controlled at the same time, their operations tend to become less accurate. Building practical, large quantum computers will require scientists to control many qubits simultaneously while keeping errors to a minimum.
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