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2022 Fiscal Year Annual Research Report

Modularization of quantum circuits and mathematical and experimental study of quantum control

Research Project

Project/Area Number 20K03795
Research InstitutionKindai University

Principal Investigator

中原 幹夫  近畿大学, 理工学総合研究所, 研究員 (90189019)

Co-Investigator(Kenkyū-buntansha) NICCHORMAIC SILE  沖縄科学技術大学院大学, 量子技術のための光・物質相互作用ユニット, 教授 (10715288)
BUSCH Thomas  沖縄科学技術大学院大学, 量子システム研究ユニット, 教授 (30715272)
Project Period (FY) 2020-04-01 – 2023-03-31
Keywords非断熱量子制御 / デコヒーレンス抑制 / 光学ナノファイバー / 近接場 / 4重極相互作用
Outline of Annual Research Achievements

中原は主に非断熱量子制御(断熱ショートカット)の継続研究を行った。イギリスRoyal Societyの雑誌The Philosophical Transactions of the Royal Society Aの特別号"Shortcuts to adiabaticity: theoretical, experimental and interdisciplinary perspectives”の筆頭編集者を務め、非断熱量子制御を様々な視点からまとめた。断熱ショートカットは高忠実度の断熱量子制御の結果を短時間で実現するので、量子ゲートに適用した時にはデコヒーレンスを抑制することができる。また、断熱ショートカットで最もよく使われる方法の一つである”counteradiabatic driving”について総合報告を行った。量子状態トモグラフィー、断熱量子計算、有限系の加法的不確定性関係に関する数学的研究も行ったが、出版するには至っていない。
BuschとNic Chormaicは、光ナノファイバーと2準位原子との相互作用を理論的および実験的に特徴づける研究に多くの進展があった。特に、光ナノファイバーの近接場を介した4重極相互作用、アレイ・モード理論を使った2つの平行な光ナノファイバー間の光学力、光ナノファイバー近傍での電気四重極遷移に伴うガイド光から原子への角運動量の伝達、光ナノファイバー近傍における多価アルカリ金属原子の低位励起状態の反発性カシミール・ポルダー・ポテンシャルなどの研究成果を強調したい。これらすべての研究が、原子+ナノファイバーのハイブリッド量子システムのより良い制御につながると期待される。

  • Research Products

    (14 results)

All 2023 2022 Other

All Int'l Joint Research (1 results) Journal Article (6 results) (of which Int'l Joint Research: 2 results,  Open Access: 5 results,  Peer Reviewed: 5 results) Presentation (7 results) (of which Int'l Joint Research: 7 results,  Invited: 6 results)

  • [Int'l Joint Research] ITMO University(ロシア連邦)

    • Country Name
      RUSSIA FEDERATION
    • Counterpart Institution
      ITMO University
  • [Journal Article] Direction-dependent coupling between a nanofiber-guided light field and a two-level atom with an electric quadrupole transition2023

    • Author(s)
      Fam Le Kien, Sile Nic Chormaic, and Thomas Busch
    • Journal Title

      Physical Review A

      Volume: 107 Pages: 013713 1-12

    • DOI

      10.1103/PhysRevA.107.013713

    • Peer Reviewed / Open Access
  • [Journal Article] Preface to ‘Shortcuts to adiabaticity: theoretical, experimental and interdisciplinary perspectives’2022

    • Author(s)
      Nakahara Mikio、Chen Xi、Ban Yue、Masuda Shumpei
    • Journal Title

      Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences

      Volume: 380 Pages: 20210284 1-3

    • DOI

      10.1098/rsta.2021.0284

    • Open Access / Int'l Joint Research
  • [Journal Article] Counterdiabatic formalism of shortcuts to adiabaticity2022

    • Author(s)
      Nakahara Mikio
    • Journal Title

      Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences

      Volume: 380 Pages: 20210272 1-21

    • DOI

      10.1098/rsta.2021.0272

    • Peer Reviewed
  • [Journal Article] Repulsive Casimir-Polder potentials of low-lying excited states of a multilevel alkali-metal atom near an optical nanofiber2022

    • Author(s)
      Fam Le Kien, D. F. Kornovan, Sile Nic Chormaic, and Thomas Busch
    • Journal Title

      Physical Review A

      Volume: 105 Pages: 042817 1-14

    • DOI

      10.1103/PhysRevA.105.042817

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Optical force between two coupled identical parallel optical nanofibers2022

    • Author(s)
      Fam Le Kien, Sile Nic Chormaic, and Thomas Busch
    • Journal Title

      Physical Review A

      Volume: 105 Pages: 063517 1-7

    • DOI

      10.1103/PhysRevA.105.063517

    • Peer Reviewed / Open Access
  • [Journal Article] Transfer of angular momentum of guided light to an atom with an electric quadrupole transition near an optical nanofiber2022

    • Author(s)
      Fam Le Kien, Sile Nic Chormaic, and Thomas Busch
    • Journal Title

      Physical Review A

      Volume: 106 Pages: 013712 1-8

    • DOI

      10.1103/PhysRevA.106.013712

    • Peer Reviewed / Open Access
  • [Presentation] Probing cold atom interactions via optical nanofibers2023

    • Author(s)
      S Nic Chormaic, A Vylegzhanin, Z Shahrabifarahani, A Raj, A Zaitsev, S Abdrakhmanov, W Li, J L Everett, D Brown
    • Organizer
      SPIE Photonics West
    • Int'l Joint Research / Invited
  • [Presentation] From cold atoms to microbead manipulation using ultrathin optical fibres2022

    • Author(s)
      S Nic Chormaic
    • Organizer
      IEEE-Optica IIT Bombay Photonics Student Chapters
    • Int'l Joint Research / Invited
  • [Presentation] Using optical nanofibres to mediate cold atom interactions2022

    • Author(s)
      S Nic Chormaic
    • Organizer
      DAALI Workshop "Delving into light-matter interactions and their applications"
    • Int'l Joint Research / Invited
  • [Presentation] Using optical nanofibres to mediate cold atom interactions2022

    • Author(s)
      S Nic Chormaic
    • Organizer
      EOSAM 2022
    • Int'l Joint Research
  • [Presentation] Manipulating and trapping particles from atoms to Janus spheres using optical nanofibres2022

    • Author(s)
      S Nic Chormaic
    • Organizer
      Photon UK
    • Int'l Joint Research / Invited
  • [Presentation] Optical nanofibre dipole traps and Rydberg atom interactions2022

    • Author(s)
      S Nic Chormaic
    • Organizer
      APPC 2022
    • Int'l Joint Research / Invited
  • [Presentation] Hybrid quantum systems using optical nanofibres integrated with cold rubidium atoms2022

    • Author(s)
      S Nic Chormaic, A Vylegzhanin, Z Shahrabifarahani, A Raj, RK Gupta, D Brown, JL Everett.
    • Organizer
      CLEO Pacific Rim 2022
    • Int'l Joint Research / Invited

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Published: 2023-12-25  

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