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High-Fidelity Spin and Optical Control of Single Silicon-Vacancy Centres in Cilicon Carbide
https://repo.qst.go.jp/records/76002
https://repo.qst.go.jp/records/76002b3b06ce5-54fa-40aa-be0e-a524b3acf6dc
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-06-08 | |||||
| タイトル | ||||||
| タイトル | High-Fidelity Spin and Optical Control of Single Silicon-Vacancy Centres in Cilicon 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 |
Nagy, R.
× Nagy, R.× Niethammer, M.× Widmann, M.× Y., -C. Chen× Udvarhelyi, P.× Bonato, C.× U. Hassan, J.× Karhu, R.× G. Ivanov, I.× T. Son, N.× R. Maze, J.× Ohshima, Takeshi× O. Soykal, O.× Gali, A.× S.-Y., Lee× Kaiser, F.× Wrachtrup, J.× Ohshima, Takeshi |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Scalable quantum networking requires quantum systems with quantum processing capabilities. Solid state spin systems with reliable spin–optical interfaces are a leading hardware in this regard. However, available systems suffer from large electron–phonon interaction or fast spin dephasing. Here, we demonstrate that the negatively charged silicon-vacancy centre in silicon carbide is immune to both drawbacks. Thanks to its 4A2 symmetry in ground and excited states, optical resonances are stable with near-Fourier-transform-limited linewidths, allowing exploitation of the spin selectivity of the optical transitions. In combination with millisecond-long spin coherence times originating from the high-purity crystal, we demonstrate high-fidelity optical initialization and coherent spin control, which we exploit to show coherent coupling to single nuclear spins with ∼1 kHz resolution. The summary of our findings makes this defect a prime candidate for realising memory-assisted quantum network applications using semiconductor-based spin-to-photon interfaces and coherently coupled nuclear spins. |
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| 書誌情報 |
Nature Communications 巻 10, p. 1954-1-1954-8, 発行日 2019-04 |
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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 | 2041-1723 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1038/s41467-019-09873-9 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.nature.com/articles/s41467-019-09873-9 | |||||
