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小坂・関口研究室
Showing the original Japanese · View translation
ダイヤモンドを使って量子コンピュータと量子通信をつなぐ研究室。
AboutAbout the lab
量子コンピュータと通信を、量子でつなぐ。
小坂・関口研究室は、
ダイヤモンドに
この
研究室の
Key terms
- 量子中継
- 光ファイバー損失で
限られる 量子暗号通信の 距離を 延ば すために 必要な 仕組み - 窒素空
孔 （NV） 中 心 - ダイヤモンドに
窒素を 添加して できる 色中心の 一つ。 量子メモリと して 働く - 量子トランスデューサ
- 超伝導量子ビット
（マイクロ波）と 光通信の 間で、 量子情報を 損な わず 受け渡しする 装置 - 量子メモリ
- 量子状態を
長時間 保持し、 光子との 量子も つれを 自在に 生成できる 素子
NewsLab news
新論文
「Absorption-emission quantum repeater using diamond quantum memories」を 公開 小坂英男教授が、
第20回 （2026年度） 応用物理学会フェローに 選出 学生が、
修士課程の 修了に あたり数々の 賞を 受賞 修士課程の
学生が、 第21回ナノテク交流シンポジウムで 最優秀発表賞を 受賞 Physical Review Letters に、
超伝導ナノワイヤの マイクロ波共振器に 関する 論文が 掲載
ResearchResearch themes
量子コンピュータと
*Illustrative image量子通信と計算をつなぐインターフェース
光子で
*Illustrative image分散・誤り耐性を見据えた量子計算
量子コンピュータが
*Illustrative imageダイヤモンド中の色中心（NV中心）
量子状態を
*Illustrative image量子暗号通信の距離を延ばす量子中継
光ファイバー損失に
MembersFaculty
小坂研究室の
- Professor小坂 英男
- Assistant Professor関口 雄平
- Specially Appointed Faculty (Assistant Professor)上牧 瑛
- Specially Appointed Faculty (Assistant Professor)金野 晃之
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Alice in BBN laboratory - DARPA Quantum Network, January 2003” Daderot / CC0 (cropped)
- 量子通信と
計算を つなぐ インターフェース: “Entangled link - Barb - DARPA Quantum Network - P1010012” Daderot / CC0 (cropped) - 分散・誤り
耐性を 見据えた 量子計算: “Quantum-computer-Chalmers 2017” Anita Fors (Chalmers) / CC BY-SA 4.0 (cropped) - ダイヤモンド中の
色中 心 （NV中 心） : “Diamond (side view)” Pavel.Somov / CC BY 4.0 (cropped) - 量子暗号通信の
距離を 延ばす量子中継: “Quantum Entanglement Experiment via Spontaneous Parametric Down-Conversion (SPDC)” Farbodk / CC BY-SA 4.0 (cropped) - Related lab (堀切・
小澤研究室): “Full wafer of Intel quantum computers” Steve Jurvetson from Menlo Park, USA / CC BY 2.0 (cropped) - Related lab (洪・赤松・浅川研究室): “Optical atomic clock ( )” National Institute of Standards and Technology / Public domain (cropped)
- Related lab (大野(真)研究室): “Atomic Force Microscope 02” Gannu03 / CC BY-SA 4.0 (cropped)
- Related lab (首藤研究室): “PES Hemispherical Analyzer With Electrons And Signs” Ichwarsnur / CC BY-SA 4.0 (cropped)
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