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KAKEN_26220602seika.pdf
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Title |
Title |
ダイヤモンド量子センシング
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Kana |
ダイヤモンド リョウシ センシング
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Romanization |
Daiyamondo ryōshi senshingu
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Diamond quantum sensing
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伊藤, 公平
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Kana |
イトウ, コウヘイ
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Romanization |
Itō, Kōhei
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慶應義塾大学・理工学部 (矢上)・教授
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Research team head
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科研費研究者番号 : 30276414
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鹿田, 真一
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シカタ, シンイチ
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Romanization |
Shikata, Shin'ichi
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関西学院大学・理工学部・教授
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Research team member
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科研費研究者番号 : 00415689
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原田, 慶恵
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ハラダ, ヨシエ
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Romanization |
Harada, Yoshie
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大阪大学・蛋白質研究所・教授
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Research team member
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科研費研究者番号 : 10202269
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渡邊, 幸志
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ワタナベ, ヒデユキ
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Watanabe, Hideyuki
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国立研究開発法人産業技術総合研究所 ・エレクトロニクス 製造領域・主任研究員
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Research team member
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科研費研究者番号 : 50392684
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早瀬, 潤子
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ハヤセ, ジュンコ
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Hayase, Junko
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梅沢, 仁
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ウメザワ, ヒトシ
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Umezawa, Hitoshi
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2019
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科学研究費補助金研究成果報告書
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2018
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Abstract |
ダイヤモンド中の窒素-空孔(NV)ペア欠陥に局在する単一電子スピンを「量子センサー」として、その周辺に置かれた単一原子核スピンからの磁場検出と核スピン状態操作 (単一核スピン磁気共鳴:NMR) を実行し、さらにはその単一核スピンの位置を三次元空間で原子レベルの空間分解能で確定するイメージング手法を開発し、室温におけるその実証実験に初めて成功した。また、この実証実験に至る過程において、量子センシングに必要なマイクロ波技術と単一電子・核スピン量子制御に関する多くの学術的成果を得た。バイオセンシングにおいても単一細胞内の温度測定に成功した。
A single electron spin associated with a nitrogen-vacancy pair defect in diamond is used as a quantum sensor to realize a mission impossible by the classical means; measurement of the extremely small magnetic field arising from a single nuclear spin followed by quantum manipulation of the same nuclear spin (single nuclear spin magnetic resonance) to determine the exact position of the nuclear spin in the three-dimensional-space with the atomic-level (angstrom) spatial resolution. This level of atomic-scale magnetic resonance imaging (MRI) was performed at room temperature for the first time. In the course of reaching this goal, high quality NV sensor fabrication methods and a variety of a single electron and nuclear spin quantum manipulation protocols leading to quantum sensing was developed. In the area of biosensing, a temperature measurement within cells was demonstrated successfully while the original goal of sensing electric and magnetic field within cells was not achieved.
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研究種目 : 基盤研究(S)
研究期間 : 2014~2018
課題番号 : 26220602
研究分野 : 量子情報
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