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Entanglement and Control of Single Nuclear Spins in Isotopically Engineered Silicon Carbide
https://repo.qst.go.jp/records/80691
https://repo.qst.go.jp/records/80691d13861ca-fe90-496d-b5c4-280037aea028
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-10-12 | |||||
| タイトル | ||||||
| タイトル | Entanglement and Control of Single Nuclear Spins in Isotopically Engineered Silicon Carbide | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Bourassa, Alexandre
× Bourassa, Alexandre× P. Anderson, Christopher× C. Miao, Kevin× Onizhuk, Mykyta× Ma, He× L. Crook, Alexander× Abe, Hiroshi× Jawad, Ul-Hassan× Ohshima, Takeshi× T. Son, Nguyen× Galli, Giulia× D. Awschalom, David× Hiroshi, Abe× Takeshi, Ohshima |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Nuclear spins in the solid state are both a cause of decoherence and a valuable resource for spin qubits. In this work, we demonstrate control of isolated 29Si nuclear spins in silicon carbide (SiC) to create an entangled state between an optically active divacancy spin and a strongly coupled nuclear register. We then show how isotopic engineering of SiC unlocks control of single weakly coupled nuclear spins and present an ab initio method to predict the optimal isotopic fraction that maximizes the number of usable nuclear memories. We bolster these results by reporting high-fidelity electron spin control (F = 99.984(1)%), alongside extended coherence times (Hahn-echo T2 = 2.3 ms, dynamical decoupling T2 DD > 14.5 ms), and a >40-fold increase in Ramsey spin dephasing time (T2*) from isotopic purification. Overall, this work underlines the importance of controlling the nuclear environment in solid-state systems and links single photon emitters with nuclear registers in an industrially scalable material. |
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| 書誌情報 |
Nature Materials 巻 19, p. 1319-1325, 発行日 2020-09 |
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| 出版者 | ||||||
| 出版者 | Nature | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1476-1122 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1038/s41563-020-00802-6 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.nature.com/articles/s41563-020-00802-6 | |||||
