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DOI | 10.1038/s41467-019-09620-0 |
Coherent coupling between a quantum dot and a donor in silicon | |
Harvey-Collard, Patrick1,2,3; Jacobson, N. Tobias4; Rudolph, Martin3; Dominguez, Jason3; Ten Eyck, Gregory A.3; Wendt, Joel R.3; Pluym, Tammy3; Gamble, John King4; Lilly, Michael P.5; Pioro-Ladriere, Michel1,2,6; Carroll, Malcolm S.3 | |
2019-04-05 | |
发表期刊 | NATURE COMMUNICATIONS
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ISSN | 2041-1723 |
出版年 | 2017 |
卷号 | 8 |
文章类型 | Article |
语种 | 英语 |
国家 | Canada; USA |
英文摘要 | 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 P-31 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. |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000413169000009 |
WOS关键词 | SPIN QUBIT ; TOMOGRAPHY ; EXCHANGE ; FIDELITY ; GATE |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/204302 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Sherbrooke, Dept Phys, Sherbrooke, PQ J1K 2R1, Canada; 2.Univ Sherbrooke, Inst Quant, Sherbrooke, PQ J1K 2R1, Canada; 3.Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA; 4.Sandia Natl Labs, Ctr Res Comp, POB 5800, Albuquerque, NM 87185 USA; 5.Sandia Natl Labs, Ctr Integrated Nanotechnol, POB 5800, Albuquerque, NM 87185 USA; 6.Canadian Inst Adv Res, Quantum Informat Sci Program, Toronto, ON M5G 1Z8, Canada |
推荐引用方式 GB/T 7714 | Harvey-Collard, Patrick,Jacobson, N. Tobias,Rudolph, Martin,et al. Coherent coupling between a quantum dot and a donor in silicon[J]. NATURE COMMUNICATIONS,2019,8. |
APA | Harvey-Collard, Patrick.,Jacobson, N. Tobias.,Rudolph, Martin.,Dominguez, Jason.,Ten Eyck, Gregory A..,...&Carroll, Malcolm S..(2019).Coherent coupling between a quantum dot and a donor in silicon.NATURE COMMUNICATIONS,8. |
MLA | Harvey-Collard, Patrick,et al."Coherent coupling between a quantum dot and a donor in silicon".NATURE COMMUNICATIONS 8(2019). |
条目包含的文件 | 条目无相关文件。 |
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