Quantum Control based on NMR Paradigm ESR Methodology
| Project/Area Number |
17H03012
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Physical chemistry
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| Research Institution | Osaka City University |
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Principal Investigator |
Sato Kazunobu 大阪市立大学, 大学院理学研究科, 教授 (90264796)
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| Co-Investigator(Kenkyū-buntansha) |
杉崎 研司 大阪市立大学, 大学院理学研究科, 特任講師 (70514529)
中澤 重顕 大阪市立大学, 大学院理学研究科, 特任准教授 (70342821)
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| Project Period (FY) |
2017-04-01 – 2020-03-31
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| Project Status |
Completed (Fiscal Year 2019)
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| Budget Amount *help |
¥11,960,000 (Direct Cost: ¥9,200,000、Indirect Cost: ¥2,760,000)
Fiscal Year 2019: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2018: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2017: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
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| Keywords | パルス磁気共鳴 / 量子制御 / 電子状態 / NMRパラダイムESR / 任意波形パルス / 量子アルゴリズム / 量子コンピュータ / GRAPEパルス / 断熱変化 / チャープパルス / 磁気共鳴 |
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| Outline of Final Research Achievements |
Quantum spin technology based on arbitrary waveform microwave pulses has been developed, having been applied to molecular spin systems, in which multi-electron spins are weakly coupled, in order to control the spin states. As models for the coupled spin systems, g-engineered biradical that consist of trityl and nitroxide moieties have been developed. The magnetic properties were characterized by multifrequency CW-ESR spectroscopy and quantum chemical calculations. The g-engineered biradicals have also been tested as a prototype for Arbitrary Wave Generator (AWG)-based spin manipulation techniques for use in molecular spin quantum computers, demonstrating efficient signal enhancement of specific weakened hyperfine signals as the quantum spin manipulation technique. We have considered the extension of the molecular spin systems to asymmetric triradical systems, having characterized those electronic and molecular structures.
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| Academic Significance and Societal Importance of the Research Achievements |
本研究では、ESR分光学に新しいマイクロ波パルス技術を導入したもので、ESRの信号応答を自由に制御可能であることを明確に示した。これは、核スピンに対して用いられるNMRパルス技術を高周波マイクロ波に展開し、電子スピン状態の高周波制御を実現したものである。パルス技術のESR応用は、分子スピン系の基本的な量子状態制御技術の実装であり、量子コンピュータにおける量子演算の実現に役立つ基幹技術として役立つことが期待される。パルス技術の新規ビラジカルやトリラジカル等の分子スピン系への応用により、分子スピン量子ビットを活用する量子情報処理の可能性が広がり、情報社会の発展に寄与する所は大きい。
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Report
(4 results)
Research Products
(83 results)
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[Presentation] Molecular Spin Quantum Computing by Arbitrary Microwave Excitation Technology for Optimal Quantum Control2018
Author(s)
Kazunobu Sato, Satoru Yamamoto, Taiki Shibata, Rei Hirao, Keigo Tanimoto, Kenji Sugisaki, Shigeaki Nakazawa, Elham Hosseini, Koji Maruyama, Kazuo Toyota, Daisuke Shiomi, Konstantin Ivanov, Yasushi Morita, and Takeji Takui
Organizer
The 16th International Conference on Molecule-based Magnets - ICMM2018
Related Report
Int'l Joint Research
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[Presentation] Molecular Spin Technology based on Arbitrary Microwave Excitations for Quantum Control2018
Author(s)
Kazunobu Sato, Satoru Yamamoto, Taiki Shibata, Rei Hirao, Keigo Tanimoto, Kenji Sugisaki, Shigeaki Nakazawa, Elham Hosseini, Koji Maruyama, Kazuo Toyota, Daisuke Shiomi, Konstantin Ivanov, Yasushi Morita, and T. Takui
Organizer
The III International Conference “Spin physics, spin chemistry and spin technology” (SPCT-2018)
Related Report
Int'l Joint Research / Invited
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[Presentation] Molecular Spin Manipulations by Arbitrary Microwave Excitation Technology for Optimal Quantum2018
Author(s)
K. Sato, S. Yamamoto, T. Shibata, R. Hirao, K. Tanimoto, K. Sugisaki, S. Nakazawa, E. Hosseini, K. Maruyama, K. Toyota, D. Shiomi, K. Ivanov, Y. Morita, and T. Takui
Organizer
XII Russian-Japanese workshop “OPEN SHELL COMPOUNDS AND MOLECULAR SPIN DEVICES”
Related Report
Int'l Joint Research / Invited
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[Presentation] Spin Manipulation by Arbitrary Microwave Excitation for Molecular Quantum Control2018
Author(s)
Kazunobu Sato, Satoru Yamamoto, Taiki Shibata, Rei Hirao, Keigo Tanimoto, Kenji Sugisaki, Shigeaki Nakazawa, Elham Hosseini, Koji Maruyama, Kazuo Toyota, Daisuke Shiomi, Konstantin Ivanov, Yasushi Morita, and Takeji Takui
Organizer
The Third Joint Conference of the Asia-Pacific EPR/ESR Society and The International EPR (ESR) Society (IES) Symposium
Related Report
Int'l Joint Research
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[Presentation] Single-Crystal ESR Spectral Analysis and Double Quantum Transitions of Highly Compact Nitroxide-based Diradicals in the Triplet Ground State for Quantum Spin Memory Devices for Quantum Computers2017
Author(s)
Shigeaki Nakazawa, Shun Sawada, Moeko Kawamori, Kenji Sugisaki, Kazuo Toyota, Daisuke Shiomi, Kazunobu Sato, Kosuke Omukai, Takanori Furui, Masato Kuratsu, Shuichi Suzuki, Masatoshi Kozaki, Keiji Okada and Takeji Takui
Organizer
The 50th Annual International Meeting of the Electron Spin Resonance Group of the Royal Society of Chemistry
Related Report
Int'l Joint Research
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[Presentation] Implementation of Ensemble Quantum Spin Memory Devices for Quantum Computers: Highly Compact Nitroxide-based Triplet Diradicals and Stable Molecular High Spins2017
Author(s)
S. Nakazawa, S. Sawada, M. Kawamori, K. Sugisaki, K. Toyota, D. Shiomi, K. Sato, K. Omukai, T. Furui, M. Kuratsu, S. Suzuki, M. Kozaki, K. Okada and T. Takui
Organizer
The 5th Awaji International Workshop on “Electron Spin Science & Technology: Biological and Materials Science Oriented Applications” (AWEST2017)
Related Report
Int'l Joint Research
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[Presentation] Quantum Spin Memory Devices for Quantum Computers: Highly Compact Nitroxide-Based Diradicals in the Triplet Ground State2017
Author(s)
S. Nakzawa, S. Sawada, M. Kawamori, K. Sugisaki, K. Toyota, D. Shiomi, K. Sato, K. Omukai, T. Furui, M. Kuratsu, S. Suzuki, M. Kozaki, K. Okada, and T. Takui
Organizer
2nd Scientific School & Conference for young scientists "DESIGN OF MAGNETOACTIVE COMPOUNDS"
Related Report
Int'l Joint Research
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[Presentation] ESR/ENDOR法を用いたホスホニウム基を有する安定なナフタレンジイミドラジカルイオンの電子状態の研究2017
Author(s)
崎山弾, 巽俊輔, 杉崎研司, 佐藤和信, 豊田和男, 塩見大輔, Sharvan Kumar, Sudhir Kumar Keshri, Yogendra Kumar, Pritam Mukhopadhyay, 工位武治
Organizer
第56回電子スピンサイエンス学会年会（SEST2017）
Related Report
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