YAMANASHI Yuki

Affiliation

Faculty of Engineering, Division of Intelligent Systems Engineering

Job Title

Associate Professor

Date of Birth

1979

Research Fields, Keywords

Superconducting electronics

Mail Address

E-mail address

Related SDGs




The Best Research Achievement in the last 5 years 【 display / non-display

Education 【 display / non-display

  • 2005.4
    -
    2007.9

    Yokohama National University   Doctor Course   Completed

  • 2003.4
    -
    2005.3

    Yokohama National University   Master Course   Completed

  • 1999.4
    -
    2003.3

    Yokohama National University   Graduated

Degree 【 display / non-display

  • Doctor of Engineering - Yokohama National University

Campus Career 【 display / non-display

  • 2012.4
     
     

    Duty   Yokohama National UniversityFaculty of Engineering   Division of Intelligent Systems Engineering   Associate Professor  

  • 2007.11
    -
    2012.3

    Duty   Yokohama National UniversityInterdisciplinary Research Center   Specially Appointed Assistant Professor  

  • 2018.4
     
     

    Concurrently   Yokohama National UniversityInstitute of Advanced Sciences   Associate Professor  

  • 2018.4
     
     

    Concurrently   Yokohama National UniversityGraduate school of Engineering Science   Department of Mathematics, Physics, Electrical Engineering and Computer Science   Associate Professor  

  • 2012.4
     
     

    Concurrently   Yokohama National UniversityCollege of Engineering Science   Department of Mathematics, Physics, Electrical Engineering and Computer Science   Associate Professor  

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External Career 【 display / non-display

  • 2016.5
    -
    2016.8

     

  • 2010.4
    -
    2010.7

     

  • 2007.9
    -
    2008.3

    UB Berkeley   Visitting researcher  

  • 2007.4
    -
    2007.10

      Special researcher of the Japan Society for the Promotion of Science  

Academic Society Affiliations 【 display / non-display

  • 2015.4
     
     
     

    IEEE

  • 2013.10
     
     
     

    低温工学・超電導学会

  • 2013.10
     
     
     

    電気学会

  • 2005.9
     
     
     

    電子情報通信学会

  • 2002.9
     
     
     

    応用物理学会

Research Areas 【 display / non-display

  • Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Electric and electronic materials

  • Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Electron device and electronic equipment

 

Papers 【 display / non-display

  • A high-speed interface based on a Josephson latching driver for adiabatic quantum-flux-parametron logic

    CHINA Fumihiro, TAKEUCHI Naoki, SUZUKI Hideo, YAMANASHI Yuki, TERAI Hirotaka, YOSHIKAWA Nobuyuki

    IEICE Trans. Electron.   E105-C ( 6 )   264 - 269   2022.6  [Reviewed]

    DOI Web of Science CiNii Research

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:The Institute of Electronics, Information and Communication Engineers   Joint Work  

    <p>The adiabatic quantum flux parametron (AQFP) is an energy-efficient, high-speed superconducting logic device. To observe the tiny output currents from the AQFP in experiments, high-speed voltage drivers are indispensable. In the present study, we develop a compact voltage driver for AQFP logic based on a Josephson latching driver (JLD), which has been used as a high-speed driver for rapid single-flux-quantum (RSFQ) logic. In the JLD-based voltage driver, the signal currents of AQFP gates are converted into gap-voltage-level signals via an AQFP/RSFQ interface and a four-junction logic gate. Furthermore, this voltage driver includes only 15 Josephson junctions, which is much fewer than in the case for the previously designed driver based on dc superconducting quantum interference devices (60 junctions). In measurement, we successfully operate the JLD-based voltage driver up to 4 GHz. We also evaluate the bit error rate (BER) of the driver and find that the BER is 7.92×10<sup>-10</sup> and 2.67×10<sup>-3</sup> at 1 GHz and 4 GHz, respectively.</p>

  • Design of Binary Convolution Operation Circuit for Binarized Neural Networks Using Single-Flux-Quantum Circuit

    Z. Li, Y. Yamanashi, N. Yoshikawa

    IEEE Trans. Appl. Supercond.   32 ( 4 )   130030   2022.6  [Reviewed]

    DOI Web of Science

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Joint Work  

  • Boltzmann Machine Using Superconducting Circuits

    K. Miyake, Y. Yamanashi, N. Yoshikawa

    IEEE Trans. Appl. Supercond.   32 ( 4 )   170020   2022.6  [Reviewed]

    DOI Web of Science

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Joint Work  

  • Design of Discrete Hopfield Neural Network Using a Single Flux Quantum Circuit

    H. He, Y. Yamanashi, N. Yoshikawa

    IEEE Trans. Appl. Supercond.   32 ( 4 )   130060   2022.6  [Reviewed]

    DOI Web of Science

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    Authorship:Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Joint Work  

  • Current Status and Issues of Superconductor Peripheral Circuits for Quantum Computers

    Tanaka Masamitsu, Yamanashi Yuki

    IEEJ Transactions on Fundamentals and Materials   142 ( 5 )   175 - 182   2022.5  [Reviewed]

    DOI CiNii Research

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:The Institute of Electrical Engineers of Japan   Joint Work  

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Review Papers 【 display / non-display

  • 低電力超伝導集積回路研究の進展

    山梨裕希, 竹内尚輝, 吉川信行

    電気学会論文誌A   136 ( 12 )   734 - 739   2016.12

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)   Joint Work  

  • 質量分析用単一磁束量子時間測定回路の測定

    超電導Web21   2012.10

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (bulletin of university, research institution)   Single Work  

  • セキュリティネットワークを支える物理乱数技術[V]-超伝導物理乱数生成器の開発

    電子情報通信学会誌   2012.4

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)   Single Work  

  • SFQ物理乱数発生器の開発展望

    山梨 裕希

    超電導Web21   2009.10

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (other)   Single Work  

  • 超伝導回路による超高速・低消費電力マイクロプロセッサの開発

    吉川信行, 田中雅光, 藤巻朗

    電気学会A部門論文誌   128 ( 6 )   369 - 372   2008.6

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)   Joint Work  

Industrial Property Rights 【 display / non-display

  • 超伝導物理乱数生成器

    山梨裕希

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    Application no:特願2021-131307  Date applied:2021.8.11

    Country of applicant:Domestic  

  • 単一磁束量子回路及び単一磁束量子回路動作方法

    山梨裕希

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    Application no:2013-179205  Date applied:2013.8.30

    Announcement no:2015-50512  Date announced:2015.3.16

    Country of applicant:Domestic  

  • 測定装置及び測定方法

    山梨裕希

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    Application no:2013-043481  Date applied:2013.3.5

    Announcement no:2014-173846  Date announced:2014.9.22

    Country of applicant:Domestic  

  • 物理乱数発生器

    山梨裕希, 杉浦達郎

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    Application no:2011-82473  Date applied:2011.4.4

    Announcement no:2012-220968  Date announced:2012.11

    Country of applicant:Domestic  

Awards 【 display / non-display

  • 低温工学・超電導学会優良発表賞

    2022.6   低温工学・超電導学会   小型化されたデコーダとメモリセルによる拡張可能な超伝導ランダムアクセスメモリ

    Individual or group name of awards:山梨裕希

  • Superconductor Science and Technology highlights of 2018

    2019.4   IOP Publishing   Design methodology of single-flux-quantum flip-flops composed of both 0- and π-shifted Josephson junctions

    Individual or group name of awards:Y. Yamanashi

  • 応用物理学会超伝導分科会第10回研究奨励賞

    2019.3   応用物理学会超伝導分科会  

    Individual or group name of awards:山梨裕希

  • 超伝導エレクトロニクス第146委員会賞

    2018.4   日本学術振興会超伝導エレクトロニクス第146委員会  

    Individual or group name of awards:山梨裕希

  • 電子情報通信学会エレクトロニクスソサイエティ活動功労表彰

    2018.3   電子情報通信学会エレクトロニクスソサイエティ  

    Individual or group name of awards:山梨裕希

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

  • 確率的演算の導入による超高電力効率を持つ超伝導回路の研究

    2022.4 - 2025.3

    Grant-in-Aid for Scientific Research(B)

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    Authorship:Principal investigator  Grant type:Competitive

  • 可逆量子磁束回路を用いた熱力学的限界を超える超低エネルギー集積回路技術の創成

    2019.4 - 2024.3

    科学研究費補助金  Grant-in-Aid for Scientific Research(S)

    Investigator(s):吉川信行

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    Grant type:Competitive

  • 超伝導素子と超伝導回路を融合した受信分光システム

    2019.4 - 2022.3

    科学研究費補助金  Grant-in-Aid for Scientific Research(B)

    Investigator(s):鎌崎剛

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    Grant type:Competitive

  • パイ遷移ジョセフソン接合を含む新しい超伝導集積回路の設計法の開発とその応用

    2018.4 - 2021.3

    科学研究費補助金  Grant-in-Aid for Scientific Research(C)

    Investigator(s):山梨 裕希

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    Grant type:Competitive

  • 熱力学的極限に挑む断熱モード磁束量子プロセッサの研究

    2014.4 - 2019.3

    科学研究費補助金  Grant-in-Aid for Scientific Research(S)

    Investigator(s):吉川信行

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    Grant type:Competitive

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Other external funds procured 【 display / non-display

  • 組合せ最適化処理に向けた革新的 アニーリングマシンの研究開発

    2019.4 - 2021.3

  • 超伝導量子アニーリング計算機の研究開発

    2018.9 - 2021.3

    Private Foundations 

  • 磁力を利用した疑似低重力環境下における土壌-機械系摩擦試験法の開発

    2012.9 - 2013.8

    日揮・実吉奨学会研究助成金

Presentations 【 display / non-display

  • 外部電流による再構成が可能な単一磁束量子FPGAの設計

    久保田悠聖, 山梨裕希, 吉川信行

    電子情報通信学会総合大会 

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    Event date: 2022.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:オンライン  

  • 量子アニーリングにおける単位格子間接続用量子ビットの動作検討

    才田大輔, 日高睦夫, 牧瀬圭正, 平山文紀, 山梨裕希

    応用物理学会春季学術講演会 

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    Event date: 2022.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:青山学院大学  

  • 超伝導単一磁束量子回路によるクロックレス論理ゲートを用いた低面積4bit桁上げ先取り加算器の設計

    藤澤大世, 山梨裕希, 吉川信行

    応用物理学会春季学術講演会 

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    Event date: 2022.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:青山学院大学  

  • 超伝導乱数生成器を用いた小面積・低遅延ストカスティック数生成器の設計

    牛山雄登, 山梨裕希, 吉川信行

    応用物理学会春季学術講演会 

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    Event date: 2022.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Venue:青山学院大学  

  • Design of a High-Throughput Accumulator using Single Flux Quantum Circuit

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    Event date: 2022.3

    Language:Japanese   Presentation type:Oral presentation (general)  

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Preferred joint research theme 【 display / non-display

  • 超伝導量子アニーリング機械の開発

Past of Collaboration and Commissioned Research 【 display / non-display

  • 超伝導量子アニーリング計算機の研究開発

    Cooperative Research within Japan  

    Project Year: 2018.9  -  2021.3 

 

Charge of on-campus class subject 【 display / non-display

  • 2022   Logic Circuits

    College of Engineering Science

  • 2022   Elemental Laboratory II for Electrical and Computer System

    College of Engineering Science

  • 2022   Elemental Laboratory I for Electrical and Computer System

    College of Engineering Science

  • 2022   Electronic Circuits Ⅰ

    College of Engineering Science

  • 2022   Electronic Circuits

    College of Engineering Science

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Committee Memberships 【 display / non-display

  • 電気学会量子コンピュータ周辺回路としての低温デジタル回路活用に関する調査専門委員会

    2019.10  幹事

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    Committee type:Academic society 

  • 低温工学・超電導学会核融合原型炉の超伝導TFコイル導体の開発課題の技術調査委員会

    2019.8 - 2020.2  委員

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    Committee type:Academic society 

  • 12th Superconducting SFQ VLSI Workshop (SSV 2019)

    2019.1  Organization committee

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    Committee type:Academic society 

  • 日本学術振興会第146委員会

    2018.4  幹事

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    Committee type:Academic society 

  • 11th Superconducting SFQ VLSI Workshop (SSV 2018)

    2018.2  Organization committee

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    Committee type:Academic society 

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Social Contribution(Extension lecture) 【 display / non-display

  • 第3回超伝導科学技術セミナー

    Role(s): Lecturer

    未踏科学技術協会超伝導科学技術研究会  2019.3

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    Audience: University students, Graduate students, Teachers, Researchers, Company

    Type:Seminar, workshop

    超伝導量子コンピュータ

  • 横浜国立大学サイエンスカフェ

    Role(s): Official expert

    横浜国立大学  2018.12

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    Audience: Junior high school students, High school students, University students, Graduate students, General public

    Type:Science cafe

    超伝導量子コンピュータ~超伝導と量子の力で最適化問題を解く~

  • 電子情報通信学会超伝導エレクトロニクス研究会若手セミナー

    Role(s): Lecturer

    名古屋大学  2017.8

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    Audience: University students, Graduate students, Teachers, Researchers

    Type:Seminar, workshop

  • 電子情報通信学会SCE若手セミナー

    横浜  2015.8

  • 横浜国立大学サイエンスカフェ

    Role(s): Lecturer

    横浜国立大学  2012.7

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    Audience: Junior high school students, High school students, University students, Graduate students, General public

    Type:Lecture

    超伝導素子による極限センシング技術

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