Two-qubit logic and teleportation with mobile spin qubits in silicon

Nature, Published online: 06 May 2026; doi:10.1038/s41586-026-10423-9

A device architecture comprising silicon-based mobile qubits and the shuttling of two electron spins together demonstrates two-qubit gate fidelity of about 99% as well as quantum state teleportation between qubits separated by 320 nm.