SATO Kazunobu

写真a

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Title

Professor

Laboratory location

Sugimoto Campus

Homepage URL

https://www.qcqis.sci.osaka-cu.ac.jp/ms/

Degree 【 display / non-display

  •  -  Doctor of Science

Research Areas 【 display / non-display

Basic chemistry, Magnetic Resonance, Molecular Magnetism

Research Interests 【 display / non-display

Molecular spin quantum computer

Research Career 【 display / non-display

  • Molecular spin quantum computing by pulsed electron magnetic resonance

    (Individual) Project Year :

    2004.04
    -
    Today

    Keyword in research subject:  ESR, quntum conputer, quantum information prosessing

  • Study of Organic high-spin Polycations and Polyanions

    (International Collaboration) Project Year :

    1996.04
     
     

    Keyword in research subject:  ESR, Polycation, Polyanion

  • Study of high-spin organic molecules by Electron Spin Magnetic Resonance

    (Collaboration in Japan) Project Year :

    1994.04
     
     

    Keyword in research subject:  High-spin organic molecule, ESR, ENDOR

  • Development of new methodology in magnetic resonance spectroscopy

    (Individual)

    Keyword in research subject:  Pulsed ESR, Transient Nutation, Multiple Resonance

Association Memberships 【 display / non-display

  • Chemical Society of Japan

  • The Society of Electron Spin Science and Technology

  • American Chemical Society

  • International EPR Society

  • Asia-Pacific EPR/ESR Society

Committee Memberships 【 display / non-display

  • 2018.09
    -
    Today

    Asian- Pacific EPR/ESR Society  

  • 2014.02
    -
    2016.02

    The Society of Electron Spin Science and Technology   General Affairs

  • 2012.01
    -
    2014.12

    Asia-Pacific EPR/ESR Society   Secretary Genreal

Current Career 【 display / non-display

  • Osaka City University   Graduate School of Science   Molecular Materials Science Course   Professor  

  • Osaka City University   Research Center for Artificial Photosynthesis (ReCAP)  

Graduate School 【 display / non-display

  •  
    -
    1994

    Osaka City University  Graduate School, Division of Natural Science 

Graduating School 【 display / non-display

  •  
    -
    1989

    Osaka City University   Faculty of Science  

 

Published Papers 【 display / non-display

  • Bayesian phase difference estimation: a general quantum algorithm for the direct calculation of energy gaps

    Sugisaki Kenji, Sakai Chikako, Toyota Kazuo, Sato Kazunobu, Shiomi Daisuke, Takui Takeji

    Royal Society of Chemistry (RSC) PHYSICAL CHEMISTRY CHEMICAL PHYSICS  23 ( 36 ) 20152 - 20162 2021.09  [Refereed]

     View Summary

    Bayesian phase difference estimation (BPDE) is a controlled-time evolution-free quantum algorithm that is capable of computing the energy difference between two electronic states directly, without inspecting the total energies of individual states.

    DOI

  • Structural dynamics of the chromo-shadow domain and chromodomain of HP1 bound to histone H3K9 methylated peptide, as measured by site-directed spin-labeling EPR spectroscopy

    Suetake Isao, Nakazawa Shigeaki, Sato Kazunobu, Mutoh Risa, Mishima Yuichi, Kawakami Toru, Takei Toshiki, Watanabe Mikio, Sakai Norio, Fujiwara Toshimichi, Takui Takeji, Miyata Makoto, Shinohara Akira, Hojo Hironobu, Arata Toshiaki

    BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS  567   42 - 48 2021.08  [Refereed]

    DOI

  • Synthesis and Physical Properties of Trioxotriangulene Having Methoxy and Hydroxy Groups at alpha-Positions: Electronic and Steric Effects of Substituent Groups and Intramolecular Hydrogen Bonds

    Murata Tsuyoshi, Yamamoto Yosuke, Ueda Akira, Ise Tomoaki, Shiomi Daisuke, Sato Kazunobu, Takui Takeji, Morita Yasushi

    JOURNAL OF ORGANIC CHEMISTRY  86 ( 15 ) 10154 - 10165 2021.08  [Refereed]

    DOI

  • Aurophilic Interactions in Multi-Radical Species: Electronic-Spin and Redox Properties of Bis- and Tris-[(Nitronyl Nitroxide)-Gold(I)] Complexes with Phosphine-Ligand Scaffolds

    Kira Sayaka, Miyamae Takayuki, Yoshida Kohei, Kanzaki Yuki, Sugisaki Kenji, Shiomi Daisuke, Sato Kazunobu, Takui Takeji, Suzuki Shuichi, Kozaki Masatoshi, Okada Keiji

    CHEMISTRY-A EUROPEAN JOURNAL  27 ( 44 ) 11450 - 11457 2021.08  [Refereed]

    DOI

  • Molecular Optimization for Nuclear Spin State Control via a Single Electron Spin Qubit by Optimal Microwave Pulses: Quantum Control of Molecular Spin Qubits

    Shibata Taiki, Yamamoto Satoru, Nakazawa Shigeaki, Lapasar Elham Hosseini, Sugisaki Kenji, Maruyama Koji, Toyota Kazuo, Shiomi Daisuke, Sato Kazunobu, Takui Takeji

    APPLIED MAGNETIC RESONANCE  2021.08  [Refereed]

    DOI

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Books etc 【 display / non-display

  • Molecular Spin Qubits: Molecular Optimization of Synthetic Spin Qubits, Molecular Spin AQC and Ensemble Spin Manipulation Technology

    S. Nakazawa, S. Nishida, K. Sato, K. Toyota, D. Shiomi, Y. Morita, K. Sugisaki, E. Hosseini, K. Maruyama, S. Yamamoto, M. Kitagawa, and T. Takui (Part: Joint Work )

    Principles and Methods of Quantum Information Technologies, in Lecture Notes in Physics 911, Y. Yamamoto, K. Semba (Eds.), Chapter 28, Springer Japan  2016

  • Adiabatic Quantum Computing on Molecular Spin Quantum Computers

    S. Yamamoto, S. Nakazawa, K. Sugisaki, K. Sato, K. Toyota, D. Shiomi, and T. Takeji (Part: Joint Work )

    Electron Spin Resonance (ESR) Based Quantum Computing, Biological Magnetic Resonance, Vol. 31T. Takui, L. Berliner, and G. Hanson (Eds.), Springer-Verlag  2016

     View Summary

    分子スピン系を用いた断熱的量子演算のプロトコルを提案し、実在する分子スピン系への応用を考察した。分子スピン系の磁気テンソルを用いた場合の量子演算の精度と実行時間を見積もった。電子-核スピン系と比較して、電子スピン間の交換s後作用を利用する多電子スピン系の有効性を示した。

  • Novel Applications of ESR/EPR: Quantum Computing/Quantum Information Processing

    Kazunobu Sato, Shigeaki Nakazawa, Shinsuke Nishida, Robabeh D. Rahimi, Tomohiro Yoshino, Yasushi Morita, Kazuo Toyota, Daisuke Shiomi, Masahiro Kitagawa, and Takeji Takui (Part: Joint Work )

    EPR of Free Radicals in Solids II, Trends in Methods and Applications, A. Lund and M. Shiotani (eds.), Springer  2013

  • Quantum Chemical Calculation of the Zero-Field Splitting Tensors for Organic Spin Multiplets

    Kenji Sugisaki, Kazuo Toyota, Kazunobu Sato, Daisuke Shiomi, Masahiro Kitagawa, and Takeji Takui (Part: Joint Work )

    EPR of Free Radicals in Solids I, Trends in Methods and Applications, A. Lund and M. Shiotani (eds.), Springer  2013

  • Molecular-Based Exchange-Coupled High-Spin Clusters: Conventional, High-Field/High-Frequency and Pulse-Based Electron Spin Resonance of Molecule-Based Magnetically Coupled Systems

    Takeji Takui, Shigeaki Nakazawa, Hideto Matsuoka, Ko Furukawa, Kazunobu Sato, and Daisuke Shiomi (Part: Joint Work )

    EPR of Free Radicals in Solids II, Trends in Methods and Applications, A. Lund and M. Shiotani (eds.), Springer  2013

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Review Papers (Misc) 【 display / non-display

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Conference Activities & Talks 【 display / non-display

  • Spin Manipulation Technology by Pulsed ESR with Arbitrary Waveform Microwave Pulses for Molecular Quantum Control

    Kazunobu Sato, Rei Hirao, Satoru Yamamoto, Kenji Sugisaki, Kazuo Toyota, Daisuke Shiomi, and Takeji Takui

    The International Chemical Congress of Pacific Basin Societies 2021 (Pacifichem2021)  2021.12 

  • Towards quantum chemical calculations of strongly correlated systems on quantum computers

    Kenji Sugisaki, Kazuo Toyota, Kazunobu Sato, Daisuke Shomi, and Takeji Takui  [Invited]

    The International Chemical Congress of Pacific Basin Societies 2021 (Pacifichem2021)  2021.12 

  • Theory of quantum chemical calculations of open shell systems on quantum computers

    Kenji Sugisaki, Kazuo Toyota, Kazunobu Sato, Daisuke Shomi, and Takeji Takui  [Invited]

    The International Chemical Congress of Pacific Basin Societies 2021 (Pacifichem2021)  2021.12 

  • g-Engineered nitroxide biradicals as models for molecular spin quantum computer

    Kazunobu Sato  [Invited]

    The International Chemical Congress of Pacific Basin Societies 2021 (Pacifichem2021)  2021.12 

  • Spin Manipulation of Stable Organic Radicals Using Arbitrary Waveform Pulses based on Pulse-ESR spectroscopy

    Kazunobu Sato, Rei Hirao, Hajime Sasaki, Kenji Sugisaki, Kazuo Toyota, Daisuke Shiomi, Elena Zaytseva, Victor M. Tormyshev, Elena Bagryanskaya, and Takeji Takui  [Invited]

    the 22nd International Society of Magnetic Resonance Conference & the 60th Annual Meeting of the Society of Electron Spin Science and Technology  2021.08 

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Grant-in-Aid for Scientific Research 【 display / non-display

  • Development of Spin Coherent Microscopy with Time and Space Resolutions Dedicated for Quantum Information Processes

    Project/Area Number : 19H05621  Grant-in-Aid for Scientific Research(S) Partaker / Other

    Project Year :

    2019.06
    -
    2024.03
     

  • Quantum Control based on NMR Paradigm ESR Methodology

    Project/Area Number : 17H03012  Grant-in-Aid for Scientific Research(B) Representative

    Project Year :

    2017.04
    -
    2020.03
     

  • Development of pulsed electron-electron multiple resonance spectroscopy for quantum state manipulation

    Project/Area Number : 23350011  Grant-in-Aid for Scientific Research(B) Representative

    Project Year :

    2011.04
    -
    2014.03
     

    Partaker : NAKAZAWA Shigeaki, SUGISAKI Kenji, TOYOTA Kazuo

     View Summary

    We have applied pulsed ESR spectroscopy to weakly exchange-coupled molecular bi- and tri-radicals to discuss electron-spin transient nutation (ESTN) phenomena in the spin states. General understandings of the ESTN phenomena in the two or three-spin systems are achieved. It helps us to implement the quantum spin manipulation quantum.
    In addition, we have developed electron spin technology by the use of arbitrary wave generators (AWG) in order to precisely manipulate molecular spins. We showed a phase rotation for transient spin nutation experiments using the arbitrary microwaves, indicating that the electron spin state is controlled on the Bloch sphere without any limitations. Hole-burning experiments with coherent-multiple microwave frequencies were also demonstrated. The AWG-based spin technology is applicable to quantum information science/quantum computers as well as high-sensitivity ESR spectroscopy.

  • Molecular spin quantum control

    Project/Area Number : 21102004  Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area) Partaker / Other

    Project Year :

    2009.07
    -
    2014.03
     

    Partaker : TAKUI Takeji, SATO Kazunobu, MORITA Yasushi, KAGAWA Akinori

     View Summary

    We have demonstrated precise spin controls for quantum information processing by numerical optimization of pulse waveform and pulse compensation for transient phenomenon in a resonator. Using regioselectively isotope labeled molecules, we have realized nuclear polarization of 34 % at room temperature and spin amplification. We have developed Ku-band pulse ESR spectrometer with an arbitrary wave form generator and stripline resonator and succeeded in pulse ESR experiments at 150 mK.
    We have designed molecules with electron spins and nuclear spins (molecular spins) which have desirable electromagnetic property for quantum control by means of magnetic resonance and characterized them.

  • Molecular-Spin Quantum Manipulation by Pulsed Electron-Nuclear Multiple Resonance Technique

    Project/Area Number : 18350015  Grant-in-Aid for Scientific Research(B) Representative

    Project Year :

    2006
    -
    2008
     

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