Coherent coupling between a quantum dot and a donor in silicon
| العنوان: | Coherent coupling between a quantum dot and a donor in silicon |
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| المؤلفون: | Tammy Pluym, Malcolm S. Carroll, Jason Dominguez, Michel Pioro-Ladrière, Gregory A. Ten Eyck, John King Gamble, Michael Lilly, Joel R. Wendt, N. Tobias Jacobson, Martin Rudolph, Patrick Harvey-Collard |
| المصدر: | Nature Communications, Vol 8, Iss 1, Pp 1-6 (2017) Nature Communications |
| بيانات النشر: | Nature Publishing Group, 2017. |
| سنة النشر: | 2017 |
| مصطلحات موضوعية: | Science, General Physics and Astronomy, FOS: Physical sciences, 02 engineering and technology, Electron, 01 natural sciences, Article, General Biochemistry, Genetics and Molecular Biology, Computer Science::Emerging Technologies, Quantum mechanics, 0103 physical sciences, Mesoscale and Nanoscale Physics (cond-mat.mes-hall), Singlet state, Quantum information, Physics::Chemical Physics, 010306 general physics, Spin (physics), lcsh:Science, Quantum, Hyperfine structure, Physics, Quantum Physics, Multidisciplinary, Condensed Matter - Mesoscale and Nanoscale Physics, General Chemistry, 021001 nanoscience & nanotechnology, Condensed Matter::Mesoscopic Systems and Quantum Hall Effect, Quantum dot, Qubit, lcsh:Q, 0210 nano-technology, Quantum Physics (quant-ph) |
| الوصف: | Individual donors in silicon chips are used as quantum bits with extremely low error rates. However, physical realizations have been limited to one donor because their atomic size causes fabrication challenges. Quantum dot qubits, in contrast, are highly adjustable using electrical gate voltages. This adjustability could be leveraged to deterministically couple donors to quantum dots in arrays of qubits. In this work, we demonstrate the coherent interaction of a $^{31}$P donor electron with the electron of a metal-oxide-semiconductor quantum dot. We form a logical qubit encoded in the spin singlet and triplet states of the two-electron system. We show that the donor nuclear spin drives coherent rotations between the electronic qubit states through the contact hyperfine interaction. This provides every key element for compact two-electron spin qubits requiring only a single dot and no additional magnetic field gradients, as well as a means to interact with the nuclear spin qubit. Published version |
| اللغة: | English |
| تدمد: | 2041-1723 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c968842a7fd9b1d7684a4d50600a4b52 http://link.springer.com/article/10.1038/s41467-017-01113-2 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....c968842a7fd9b1d7684a4d50600a4b52 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20411723 |
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