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Two-step frequency conversion for connecting distant quantum memories by transmission through an optical fiber
http://hdl.handle.net/10131/00011971
http://hdl.handle.net/10131/0001197190b701a1-5aee-4c38-a989-8d630e79703f
名前 / ファイル | ライセンス | アクション |
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kosaka_final5.pdf (1.0 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2018-08-31 | |||||
タイトル | ||||||
タイトル | Two-step frequency conversion for connecting distant quantum memories by transmission through an optical fiber | |||||
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 | |||||
著者 |
Tamura, Shuhei
× Tamura, Shuhei× Ikeda, Kohei× Okamura, Kotaro× Yoshii, Kazumichi |
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著者所属 | ||||||
Department of Physics, Yokohama National University | ||||||
著者所属 | ||||||
Department of Physics, Yokohama National University | ||||||
著者所属 | ||||||
Research Institute of Engineering, Kanagawa University | ||||||
著者所属 | ||||||
Department of Physics, Yokohama National University | ||||||
著者所属 | ||||||
Department of Physics, Yokohama National University | ||||||
著者所属 | ||||||
Department of Physics, Yokohama National University, JST, PRESTO | ||||||
著者所属 | ||||||
Department of Physics, Yokohama National University | ||||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Long-distance quantum communication requires entanglement between distant quantum memories. For this purpose, photon transmission is necessary to connect the distant memories. Here, for the first time, we develop a two-step frequency conversion process (from a visible wavelength to a telecommunication wavelength and back) involving the use of independent two-frequency conversion media where the target quantum memories are nitrogen-vacancy centers in diamonds (with an emission/absorption wavelength of 637.2 nm), and experimentally characterize the performance of this process acting on light from an attenuated CW laser. A total conversion efficiency of approximately 7% is achieved. The noise generated in the frequency conversion processes is measured, and the signal-to-noise ratio is estimated for a single photon signal emitted by a nitrogen-vacancy (NV) center. The developed frequency conversion system has future applications via transmission through a long optical fiber channel at a telecommunication wavelength for a quantum repeater network. | |||||
書誌情報 |
Japanese Journal of Applied Physics 巻 57, 号 6, p. 062801-1-062801-6, 発行日 2018-04-26 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 00214922 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA12295836 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.7567/JJAP.57.062801 | |||||
権利 | ||||||
権利情報 | © 2018 The Japan Society of Applied Physics | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
出版者 | ||||||
出版者 | Japan Society of Applied Physics through the Institute of Pure and Applied Physics |