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Experimental and Theoretical Analysis of Noise Strength and Environmental Correlation Time for Ensembles of Nitrogen-Vacancy Centers in Diamond
https://repo.qst.go.jp/records/79933
https://repo.qst.go.jp/records/79933ed137562-6ad2-4edb-a7bd-4aa79ddaffaa
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-05-07 | |||||
| タイトル | ||||||
| タイトル | Experimental and Theoretical Analysis of Noise Strength and Environmental Correlation Time for Ensembles of Nitrogen-Vacancy Centers in Diamond | |||||
| 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 |
Hayashi, Kan
× Hayashi, Kan× Matsuzaki, Yuichiro× Ashida, Takaki× Onoda, Shinobu× Ohshima, Takeshi× Hatano, Mutsuko× Taniguchi, Takashi× Morishita, Hiroki× Fujiwara, Masanori× Mizuochi, Norikazu× Onoda, Shinobu× Ohshima, Takeshi |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | NV centers in diamond have been considered as an important building block for the realization of quantum information processing such as quantum simulation, quantum memory, and quantum metrology. To maximize the potential of the NV centers, it is essential to understand the mechanism of the decoherence. Existing theories predicted a relationship between the coherence time and spin concentration (a sum of the concentration of the NV center and P1 center) in diamond. However, a systematic experimental study of the spin concentration dependence of the coherence time was still missing. Here, we experimentally and theoretically investigate the Hahn echo decay curve with several diamond samples with different spin concentration. The Hahn echo results show that we observe a non-exponential decay for the low spin concentration while an exponential decay is dominant for the high spin concentration. By fitting the decay curve with a theoretical model, we show that both the amplitude and correlation time of the environmental noise have a clear dependence on the spin concentration. These results are essential to optimize the NV center concentration as high-performance quantum devices, particularly as quantum sensors. | |||||
| 書誌情報 |
Journal of the Physical Society of Japan 巻 89, 号 5, p. 054708-1-054708-6, 発行日 2020-04 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0031-9015 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.7566/JPSJ.89.054708 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://journals.jps.jp/doi/full/10.7566/JPSJ.89.054708 | |||||
