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The elucidation of mechanism of defect centers in solid on quantum telecommunication by the ion-plantation at room temperature toward quantum repeater

Research Project

Project/Area Number 19K03700
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 13020:Semiconductors, optical properties of condensed matter and atomic physics-related
Research InstitutionKyoto University

Principal Investigator

Tashima Toshiyuki  京都大学, 工学研究科, 特定研究員 (40437356)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2019: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywords固体中の欠陥中心 / 量子中継器
Outline of Research at the Start

光量子情報通信では情報損失の少ない1.5μm帯域が使用されるが、長距離通信になるとこの帯域でも情報の伝送損失が大きくなり量子中継器が必要となる。量子中継器として期待されるイオンや原子の光波長の多くが可視光波長域にあり、可視光と1.5μm帯域で光波長変換が必要となり情報損失などが懸念される。本研究では、1.5μm帯域で動作が期待される固体中の単一Er欠陥中心が持つ機構を解明し量子中継器としての可能性を検証する。

Outline of Final Research Achievements

On optical quantum information network, telecom wavelength is very important because of low loss of the information via the network. Currently, the media for quantum repeater uses ion or atom with visible optical wavelength and then optical conversion from visible to telecom wavelength is needed. In this research, we study the media with telecom wavelength and how to use the media for the quantum repeater.

Academic Significance and Societal Importance of the Research Achievements

安全で安心な生活を築くうえで、情報化社会における正確な情報伝送が行えるシステムの構築は重要な課題である。情報伝送間の損失は少ない方がよく1.5μm帯で直接且つ常温で動作する長距離間を繋ぐ量子中継器は、量子情報通信において重要な課題である。本研究において行った中継器として役立つ可能性がある欠陥中心に対して、1.5μm帯での発光の確認は、この課題解決に向けて進展したことを意味している。

Report

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

    (10 results)

All 2022 2021 2020 2019

All Journal Article (5 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 5 results,  Open Access: 3 results) Presentation (5 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Hybrid device of hexagonal boron nitride nanoflakes with defect centres and a nano-fibre Bragg cavity2022

    • Author(s)
      Tashima Toshiyuki、Takashima Hideaki、Schell Andreas W.、Tran Toan Trong、Aharonovich Igor、Takeuchi Shigeki
    • Journal Title

      Scientific Reports

      Volume: 12 Issue: 1 Pages: 1-7

    • DOI

      10.1038/s41598-021-03703-z

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Creation of silicon vacancy color centers with a narrow emission line in nanodiamonds by ion implantation2021

    • Author(s)
      Takashima Hideaki、Fukuda Atsushi、Shimazaki Konosuke、Iwabata Yusuke、Kawaguchi Hiroki、Schell Andreas W.、Tashima Toshiyuki、Abe Hiroshi、Onoda Shinobu、Ohshima Takeshi、Takeuchi Shigeki
    • Journal Title

      Optical Materials Express

      Volume: 11 Issue: 7 Pages: 1978-1978

    • DOI

      10.1364/ome.424786

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Identification of the orientation of a single NV center in a nanodiamond using a three-dimensionally controlled magnetic field2020

    • Author(s)
      Fukushige Kazuki、Kawaguchi Hiroki、Shimazaki Konosuke、Tashima Toshiyuki、Takashima Hideaki、Takeuchi Shigeki
    • Journal Title

      Applied Physics Letters

      Volume: 116 Issue: 26 Pages: 264002-264002

    • DOI

      10.1063/5.0009698

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Determination of the Dipole Orientation of Single Defects in Hexagonal Boron Nitride2020

    • Author(s)
      Takashima Hideaki、Maruya Hironaga、Ishihara Keita、Tashima Toshiyuki、Shimazaki Konosuke、Schell Andreas W.、Tran Toan Trong、Aharonovich Igor、Takeuchi Shigeki
    • Journal Title

      ACS Photonics

      Volume: 7 Issue: 8 Pages: 2056-2063

    • DOI

      10.1021/acsphotonics.0c00405

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Direct optical excitation of an NV center via a nanofiber Bragg-cavity: a theoretical simulation2019

    • Author(s)
      Tashima Toshiyuki、Takashima Hideaki、Takeuchi Shigeki
    • Journal Title

      Optics Express

      Volume: 27 Issue: 19 Pages: 27009-27009

    • DOI

      10.1364/oe.27.027009

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] ナノダイアモンド中の窒素欠陥中心におけるラビ振動の測定2020

    • Author(s)
      川口 洋生、福重 一樹、田嶌 俊之、高島 秀聡、竹内 繁樹
    • Organizer
      第81回 応用物理学会秋季学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] NFBC結合ダイヤモンドNV中心のファイバ経由光励起・検出の実現2020

    • Author(s)
      田嶌 俊之、 高島 秀聡、竹内 繁樹
    • Organizer
      日本物理学会 第75回年次大会(2020年)
    • Related Report
      2019 Research-status Report
  • [Presentation] hBN欠陥中心とナノファイバブラック共振器のカップリング実験2019

    • Author(s)
      田嶌 俊之, 高島 秀聡, Andreas Schell, Trong Toan Tran, Igor Aharonovich, 竹内 繁樹
    • Organizer
      日本物理学会 2019年秋季大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Enhanced direct optical excitation of an NV center via Nanofiber Bragg-cavity: A numerical simulation2019

    • Author(s)
      Toshiyuki Tashima, Hideaki Takashima, Shigeki Takeuchi
    • Organizer
      CLEO/Europe-EQEC 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Visible-infrared entangled photon sources using periodically poled SLT devices2019

    • Author(s)
      Toshiyuki Tashima, Yu Mukai, Masaya Arahata, Yuki Gama, Mamoru Hisamitsu, Katsuhiko Tokuda, Ryo Okamoto, and Shigeki Takeuchi
    • Organizer
      The 2nd International Forum on Quantum Metrology and Sensing
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

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

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