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Study on improving system performance of differential-phase-shift quantum key distribution

Research Project

Project/Area Number 24560045
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Applied optics/Quantum optical engineering
Research InstitutionOsaka University

Principal Investigator

INOUE Kyo  大阪大学, 工学(系)研究科(研究院), 教授 (10393787)

Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords量子暗号通信 / 量子鍵配送
Outline of Final Research Achievements

We have studied differential-phase-shift (DPS) quantum-key-distribution (QKD) related technologies. (1) “Intensity-modulated DPS-QKD” and “Measurement-device-independent DPS-QKD” have been proposed, which are modified to improve the system performance. (2) The DPS-QKD system performance considering phase fluctuation, that considering bit-error-rate fluctuation, and the robustness of DPS-QKD systems with power monitoring against blind attacks have been clarified, assuming practical situations. (3) “Intensity-modulation/direct-detection QKD” was proposed and evaluated, which features practicality employing apparatus used in conventional optical communication systems. (4) QKD systems multiplexing a quantum channel and a classical channel over one transmission fiber have been investigated, which is desirable in system implementation, where time-division-multiplexing and wavelength-division-multiplexing are assumed.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (12 results)

All 2015 2014 2013 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (10 results) (of which Invited: 1 results)

  • [Journal Article] Differential phase-shift quantum key distribution systems2015

    • Author(s)
      K.Inoue
    • Journal Title

      IEEE J. Selected Topics in Quantum Electron

      Volume: 21 Issue: 3 Pages: 6600207-6600207

    • DOI

      10.1109/jstqe.2014.2360362

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Quasi-unambiguous state discrimination for coherent states with phase fluctuation2013

    • Author(s)
      A. Oka and K. Inoue
    • Journal Title

      Opt. Commun.

      Volume: 304 Pages: 136-142

    • DOI

      10.1016/j.optcom.2013.04.067

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Presentation] エラーレート揺らぎを考慮した現実的想定化におけるDPS-QKDの性能2015

    • Author(s)
      生田拓也、井上恭
    • Organizer
      応用物理学会学術講演会
    • Place of Presentation
      東海大学(神奈川県平塚市)
    • Year and Date
      2015-03-11 – 2015-03-14
    • Related Report
      2014 Annual Research Report
  • [Presentation] 過剰雑音及びビットエラー分布を考慮した光プリアンプを用いないIM/DDQKD2014

    • Author(s)
      生田拓也、井上恭
    • Organizer
      応用物理学会学術講演会
    • Place of Presentation
      北海道大学(北海道札幌市)
    • Year and Date
      2014-09-17 – 2014-09-20
    • Related Report
      2014 Annual Research Report
  • [Presentation] 測定装置無依存DPS量子鍵配送2014

    • Author(s)
      井上恭
    • Organizer
      応用物理学会学術講演会
    • Place of Presentation
      北海道大学(北海道札幌市)
    • Year and Date
      2014-09-17 – 2014-09-20
    • Related Report
      2014 Annual Research Report
  • [Presentation] 狭波長間隔量子/古典波長多重量子鍵配送における自然ラマン散乱の影響

    • Author(s)
      国安崇行、井上恭
    • Organizer
      第74回応用物理学会秋季学術講演会
    • Place of Presentation
      京都・同志社大学
    • Related Report
      2013 Research-status Report
  • [Presentation] レーザ光を用いた差動位相シフト量子鍵配送の連続クリック攻撃による距離制限

    • Author(s)
      岡徹、井上恭
    • Organizer
      第74回応用物理学会秋季学術講演会
    • Place of Presentation
      京都・同志社大学
    • Related Report
      2013 Research-status Report
  • [Presentation] ハンディ光パワーメータを用いるDPS-QKDブラインド攻撃対策

    • Author(s)
      永田恒一、井上恭
    • Organizer
      第61回応用物理学会春季学術講演会
    • Place of Presentation
      神奈川・青山学院大学
    • Related Report
      2013 Research-status Report
  • [Presentation] ローパスフィルタによるAPD単一区押し検出器のアフターパルス低減

    • Author(s)
      徐雪、井上恭
    • Organizer
      第61回応用物理学会春季学術講演会
    • Place of Presentation
      神奈川・青山学院大学
    • Related Report
      2013 Research-status Report
  • [Presentation] Differential phase shift quantum key distribution

    • Author(s)
      K. Inoue
    • Organizer
      Physical Sciences Symposia
    • Place of Presentation
      Boston, USA
    • Related Report
      2013 Research-status Report
    • Invited
  • [Presentation] アイソレータを挿入したDPS-QKDシステムにおけるクロック信号の時間多重伝送

    • Author(s)
      橘遼太郎、中谷俊晴、井上恭
    • Organizer
      2012年秋季応用物理学会学術講演会
    • Place of Presentation
      愛媛大学・松山大学
    • Related Report
      2012 Research-status Report
  • [Presentation] 2値強度変調/直接検波方式による量子鍵配送

    • Author(s)
      岡徹、井上恭
    • Organizer
      2013年応用物理学会春季学術講演会
    • Place of Presentation
      神奈川工科大学
    • Related Report
      2012 Research-status Report

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Published: 2013-05-31   Modified: 2019-07-29  

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