biostudies-literatureNoiri AMEXT | Japan Society for the Promotion of ScienceMEXT | Japan Society for the Promotion of Science (JSPS)MEXT | JST | Core Research for Evolutional Science and TechnologyMEXT | JST | Core Research for Evolutional Science and Technology (CREST)MEXT | JST | Precursory Research for Embryonic Science and TechnologyMEXT | JST | Precursory Research for Embryonic Science and Technology (PRESTO)5740https://www.ebi.ac.uk/biostudies/studies/S-EPMC9525571biostudies-literatureUnknown13(1)Control of entanglement between qubits at distant quantum processors using a two-qubit gate is an essential function of a scalable, modular implementation of quantum computation. Among the many qubit platforms, spin qubits in silicon quantum dots are promising for large-scale integration along with their nanofabrication capability. However, linking distant silicon quantum processors is challenging as two-qubit gates in spin qubits typically utilize short-range exchange coupling, which is only effective between nearest-neighbor quantum dots. Here we demonstrate a two-qubit gate between spin qubits via coherent spin shuttling, a key technology for linking distant silicon quantum processors. Coherent shuttling of a spin qubit enables efficient switching of the exchange coupling with an on/offNature communicationsA shuttling-based two-qubit logic gate for linking distant silicon quantum processors.PMC952557120H0023718H01819JPMJCR167516H02204JPMJPR2017JPMJCR15N219K14640Sammak ANakajima TKobayashi TTarucha SNoiri ATakeda KScappucci GfalseA shuttling-based two-qubit logic gate for linking distant silicon quantum processors.Control of entanglement between qubits at distant quantum processors using a two-qubit gate is an essential function of a scalable, modular implementation of quantum computation. Among the many qubit platforms, spin qubits in silicon quantum dots are promising for large-scale integration along with their nanofabrication capability. However, linking distant silicon quantum processors is challenging as two-qubit gates in spin qubits typically utilize short-range exchange coupling, which is only effective between nearest-neighbor quantum dots. Here we demonstrate a two-qubit gate between spin qubits via coherent spin shuttling, a key technology for linking distant silicon quantum processors. Coherent shuttling of a spin qubit enables efficient switching of the exchange coupling with an on/off2022-01-01T00:00:00Z2022 Sep2025-04-05T13:27:27.634Z2025-04-05T13:27:27.634ZS-EPMC95255713618044910.1038/s41467-022-33453-z