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Frequency ratio of Yb and Sr clocks with 5 × 10−17 uncertainty at 150 seconds averaging time
http://hdl.handle.net/2261/60844
http://hdl.handle.net/2261/6084443b959d2-b063-4e27-a544-1cba0f206557
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
20160406_YbSr_final_author_version.pdf (1.6 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2016-08-31 | |||||
| タイトル | ||||||
| タイトル | Frequency ratio of Yb and Sr clocks with 5 × 10−17 uncertainty at 150 seconds averaging time | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Atomic and molecular physics | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Quantum metrology | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | Optical spectroscopy | |||||
| 資源タイプ | ||||||
| 資源 | http://purl.org/coar/resource_type/c_6501 | |||||
| タイプ | journal article | |||||
| 著者 |
Nemitz, Nils
× Nemitz, Nils× Ohkubo, Takuya× Takamoto, Masao× Ushijima, Ichiro× Das, Manoj× Ohmae, Noriaki× Katori, Hidetoshi |
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| 著者所属 | ||||||
| 著者所属 | Quantum Metrology Laboratory, RIKEN | |||||
| 著者所属 | ||||||
| 著者所属 | Innovative Space-Time Project, ERATO, Japan Science and Technology Agency | |||||
| 著者所属 | ||||||
| 著者所属 | Department of Applied Physics, Graduate School of Engineering, The University of Tokyo | |||||
| 著者所属 | ||||||
| 著者所属 | RIKEN Center for Advanced Photonics | |||||
| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Transition frequencies of atoms and ions are among the most accurately accessible quantities in nature, playing important roles in pushing the frontiers of science by testing fundamental laws of physics, in addition to a wide range of applications such as satellite navigation systems. Atomic clocks based on optical transitions approach uncertainties of 10−18 (refs 1–3), where full frequency descriptions are far beyond the reach of the SI second. Direct measurements of the frequency ratios of such super clocks, on the other hand, are not subject to this limitation4, 5, 6, 7, 8. They can verify consistency and overall accuracy for an ensemble of super clocks, an essential step towards a redefinition of the second9. Here we report a measurement that finds the frequency ratio of neutral ytterbium and strontium clocks to be ℛ = 1.207507039343337749(55), with a fractional uncertainty of 4.6 × 10−17 and a measurement instability as low as 4 × 10−16 (τ/s)−1/2. | |||||
| 内容記述 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | UTokyo Research掲載「異なる原子の光格子時計の短時間精密比較に成功」 URI: http://www.u-tokyo.ac.jp/ja/utokyo-research/research-news/rapid-comparison-of-optical-lattice-clocks.html | |||||
| 内容記述 | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | UTokyo Research "Rapid comparison of optical lattice clocks" URI: http://www.u-tokyo.ac.jp/en/utokyo-research/research-news/rapid-comparison-of-optical-lattice-clocks.html | |||||
| 書誌情報 |
Nature photonics 巻 10, p. 258-261, 発行日 2016-02-29 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1749-4893 | |||||
| 書誌レコードID | ||||||
| 収録物識別子タイプ | NCID | |||||
| 収録物識別子 | AA12300925 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | info:doi/10.1038/nphoton.2016.20 | |||||
| 権利 | ||||||
| 権利情報 | Copyright © 2016, Rights Managed by Nature Publishing Group | |||||
| 著者版フラグ | ||||||
| 値 | author | |||||
| 出版者 | ||||||
| 出版者 | Nature Publishing Group | |||||
| 関係URI | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://www.u-tokyo.ac.jp/ja/utokyo-research/research-news/rapid-comparison-of-optical-lattice-clocks.html | |||||
| 関係URI | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://www.u-tokyo.ac.jp/en/utokyo-research/research-news/rapid-comparison-of-optical-lattice-clocks.html | |||||
| 関係URI | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://www.nature.com/nphoton/journal/v10/n4/abs/nphoton.2016.20.html | |||||
