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Repetition of photon generation and manipulation process for deterministic photon-number manipulation and quantum computing

Research Project

Project/Area Number 19H01815
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 13020:Semiconductors, optical properties of condensed matter and atomic physics-related
Research InstitutionTohoku University

Principal Investigator

Kaneda Fumihiro  東北大学, 学際科学フロンティア研究所, 助教 (80822478)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2021: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2020: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2019: ¥8,320,000 (Direct Cost: ¥6,400,000、Indirect Cost: ¥1,920,000)
Keywords光子 / 量子情報 / 量子光学 / 量子計算 / 量子メモリ
Outline of Research at the Start

本研究では,単一もしくは少数の光子源のみから発生する光子を繰り返し利用・操作することで,高資源(光子源)効率かつ高精度の光量子状態発生・操作,および量子計算を実現する.本研究では光学損失が少ないながらも比較的実験系が大きくなってしまうバルク光学系で実装される光子源やスイッチを繰り返し利用することで,低損失かつ決定論的な光子数状態の操作や大規模な量子計算を比較的小規模な光学系(光学定盤1台程度)で実現する.

Outline of Final Research Achievements

The scope of the study is to make efficient generation and manipulation of quantum state of light from inefficient processes and components, using repeated process, or time multiplexing. We demonstrated the highest single-photon generation via time-multiplexing technique. Also, we developed a highly pure heralded single-photon source and low-loss, long-life-time optical quantum memories.
Our developed techniques and devices will largely improve the efficiency and precision in generation and manipulation of quantum states of light, and will be key components in large-scale single-photon based quantum computing and arbitrary photon number manipulation.

Academic Significance and Societal Importance of the Research Achievements

本研究では、本質的に低効率であった量子光状態の発生技術を繰り返し実行し、発生効率を増強する仕組みを実証した。特に、量子情報処理における最も基本的な情報担体の一つである、単一光子状態の世界最高効率での発生技術が実証され、さらに疑似決定論的な発生への展望が示された。さらに、単一光子のみならず、より一般的な光子数状態や量子もつれ状態の高効率発生へ向けた基礎技術が実証されており、これらの成果は将来の量子技術の実現に貢献することが期待される。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (23 results)

All 2022 2021 2020 2019 Other

All Int'l Joint Research (3 results) Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (17 results) (of which Int'l Joint Research: 4 results,  Invited: 3 results) Book (1 results)

  • [Int'l Joint Research] イリノイ大学アーバナ・シャンペーン校(米国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] イリノイ大学アーバナ・シャンペーン校(米国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] イリノイ大学アーバナ・シャンペーン校(米国)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Spectral characterization of photon-pair sources via classical sum-frequency2020

    • Author(s)
      Fumihiro Kaneda, Jo Oikawa, Masahiro Yabuno, Fumihiro China, Shigehito Miki, Hirotaka Terai, Yasuyoshi Mitsumori, Keiichi Edamatsu
    • Journal Title

      Opt. Express

      Volume: 28 Issue: 26 Pages: 38993-39004

    • DOI

      10.1364/oe.412448

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] High-efficiency single-photon generation via large-scale active time multiplexing2019

    • Author(s)
      Kaneda F.、Kwiat P. G.
    • Journal Title

      Science Advances

      Volume: 5 Issue: 10

    • DOI

      10.1126/sciadv.aaw8586

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Experimental variable strength measurement using quantum computers2022

    • Author(s)
      董庭瑞, Binho Le, Soyoung Baek, 金田文寛, 枝松圭一
    • Organizer
      日本物理学会第77回年次大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Electro-optic switch toward polarization-independent single-photon routing2022

    • Author(s)
      Pengfei Wang, Keiichi Edamatsu, Fumihiro Kaneda
    • Organizer
      日本物理学会第77回年次大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Pure single-photon generation using a domain-engineered nonlinear optical crystal2022

    • Author(s)
      Fumihiro Kaneda
    • Organizer
      FRIS/TI-FRIS annual meeting
    • Related Report
      2021 Annual Research Report
  • [Presentation] 時間多重化による量子光源の研究2022

    • Author(s)
      金田文寛
    • Organizer
      レーザー学会学術講演会第42回年次大会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 小さな光子の積み重ね:多重化光子源2021

    • Author(s)
      金田文寛
    • Organizer
      FRIS Hub meeting
    • Related Report
      2021 Annual Research Report
  • [Presentation] 高効率単一光子源,量子もつれ,不確定性関係の研究2021

    • Author(s)
      金田文寛
    • Organizer
      日本物理学会第76回年次大会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 光ファイバーを用いた長周期リング型量子メモリの開発2021

    • Author(s)
      金井天馬, 三森康義, 枝松圭一, 金田文寛
    • Organizer
      日本物理学会第76回年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 変調された周期分極反転結晶による周波数不可識別伝令付き単一光子対源の開発2021

    • Author(s)
      及川憧, 三森康義, 枝松圭一, 金田文寛
    • Organizer
      日本物理学会第76回年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Study of momentum and position entanglement between photon pairs generated from parametric down-conversion2021

    • Author(s)
      Soyoung Baek, Fumihiro Kaneda, Yasuyoshi Mitsumori, Keiichi Edamatsu
    • Organizer
      日本物理学会第76回年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] High-Precision Spectral Measurements of Photon-Pair Sources via Frequency-Resolved Sum-Frequency generation2020

    • Author(s)
      Fumihiro Kaneda, Jo Oikawa, Yasuyoshi Mitsumori, Keiichi Edamatsu
    • Organizer
      Conference on Lasers and Electro-Optics (CLEO) 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 空間モードフィルタリングによる高精度電気光学スイッチ2020

    • Author(s)
      金井天馬, 三森康義, 枝松圭一, 金田文寛
    • Organizer
      日本物理学会2020年秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 時間多重化伝令付き単一光子および多光子源2020

    • Author(s)
      金田文寛
    • Organizer
      量子情報技術研究会(QIT)
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 自発パラメトリック下方変換光子対の高精度位相整合スペクトル評価方法の開発2020

    • Author(s)
      及川 瞳,金田 文寛,三森 康義,枝松 圭一
    • Organizer
      レーザー学会学術講演会 第40回年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 和周波発生を用いた光子対源の高精度スペクトル特性評価2020

    • Author(s)
      及川 瞳,金田 文寛,三森 康義,枝松 圭一
    • Organizer
      日本物理学会 第75回年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Time multiplexing for high-efficiency single-photon generation2019

    • Author(s)
      Fumihiro Kaneda, Paul Kwiat
    • Organizer
      The 2nd International Forum on Quantum Measurements and Sensing
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] High-Efficiency Time-Multiplexed Single-Photon Source2019

    • Author(s)
      Colin P. Lualdi, Fumihiro Kaneda, Joseph C. Chapman, Paul G. Kwiat
    • Organizer
      Single photon workshop 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] High-precision characterization of quantum optical resources via classical measurements2019

    • Author(s)
      Fumihiro Kaneda, Jo Oikawa, Yasuyoshi Mitsumori, Keiichi Edamatsu
    • Organizer
      The 2nd International Forum on Quantum Measurements and Sensing
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Book] 量子センシングハンドブック2021

    • Author(s)
      金田文寛, 清水亮介
    • Total Pages
      364
    • Publisher
      NTS出版
    • Related Report
      2020 Annual Research Report

URL: 

Published: 2019-04-18   Modified: 2023-01-30  

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