Nature, Published online: 17 December 2025; doi:10.1038/d41586-025-04044-x

A high-performance silicon-based quantum processor has been developed in which the spins of nine phosphorus nuclei — divided into two groups, or registers — and two shared electrons act as quantum bits (qubits). The modular design of this 11-qubit processor opens the door to a scalable approach to building large, reliable quantum-computing processors.

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