• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Design and Implementation of High-Fidelity Quantum Gates without Feedback

Research Project

Project/Area Number 25400422
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Atomic/Molecular/Quantum electronics
Research InstitutionKinki University

Principal Investigator

KONDO Yasushi  近畿大学, 理工学部, 教授 (40330229)

Co-Investigator(Kenkyū-buntansha) NAKAHARA Mikio  近畿大学, 理工学部, 教授 (90189019)
Co-Investigator(Renkei-kenkyūsha) MIZUOCHI Norikazu  大阪大学, 基礎工学部, 准教授 (00323311)
ICHIKAWA Tsubasa  学習院大学, 理学部, 研究員 (50572658)
Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords量子制御 / 量子情報 / 量子コンピュータ / 複合量子ゲート / 量子誤り訂正符号 / NMR / 核磁気共鳴 / 頑強な量子ゲート / 量子ゼノン効果 / 量子誤り訂正 / NMR測定への応用 / 位相緩和の抑制 / 国際情報交換 / 選択的2量子ビット演算
Outline of Final Research Achievements

Composite quantum gates made of possibly poor-quality ones can be made robust against systematic errors without feedback control. Very precise quantum gates are proposed by adding feedback control on these composite quantum gates. Therefore, composite quantum gates are important in order to realize precise quantum control.
We proposed a new and intuitive method how to design such composite quantum gates and applied these in order to demonstrate a quantum Zeno effect. Moreover, we demonstrated a simple yet interesting quantum error correction scheme and proposed a new quantum system of neutral atoms for a quantum computer. We also proposed and demonstrated a selective 2-qubit gate for NMR quantum computer
experiments.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (28 results)

All 2016 2015 2014 2013 Other

All Int'l Joint Research (4 results) Journal Article (8 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results,  Open Access: 2 results,  Acknowledgement Compliant: 3 results) Presentation (13 results) (of which Int'l Joint Research: 4 results) Remarks (3 results)

  • [Int'l Joint Research] ドルトムント工科大学(ドイツ)

    • Related Report
      2015 Annual Research Report
  • [Int'l Joint Research] オックスフォード大学(英国)

    • Related Report
      2015 Annual Research Report
  • [Int'l Joint Research] チャップマン大学(米国)

    • Related Report
      2015 Annual Research Report
  • [Int'l Joint Research] サンパウロ大学(ブラジル)

    • Related Report
      2015 Annual Research Report
  • [Journal Article] Using the quantum Zeno effect for suppression of decoherence2016

    • Author(s)
      Y. Kondo, Y. Matsuzaki, K. Matsushima, and J. G. Filgueiras
    • Journal Title

      New J. Phys.

      Volume: 18 Issue: 1 Pages: 013033-013033

    • DOI

      10.1088/1367-2630/18/1/013033

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] NMR model for studying Decoherence2015

    • Author(s)
      Ai Iwakura, M. Bando, Y. Kondo
    • Journal Title

      Science and Technology

      Volume: 27 Pages: 1-5

    • NAID

      120005737332

    • Related Report
      2014 Research-status Report
    • Open Access / Acknowledgement Compliant
  • [Journal Article] Construction of arbitrary robust one-qubit operations using planar geometry2014

    • Author(s)
      Tsubasa Ichikawa, Jefferson G Filgueiras, Masamitsu Bando, Yasushi Kondo, Mikio Nakahara and Dieter Suter
    • Journal Title

      Physical Review A

      Volume: 90 Issue: 5 Pages: 0523301-6

    • DOI

      10.1103/physreva.90.052330

    • Related Report
      2014 Research-status Report
    • Peer Reviewed
  • [Journal Article] Efficient entanglement operator for a multi-qubit system2014

    • Author(s)
      Chiara Bagnasco, Yasushi Kondo and Mikio Nakahara
    • Journal Title

      Physica Scripta

      Volume: 89 Issue: 8 Pages: 085102-085102

    • DOI

      10.1088/0031-8949/89/8/085102

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Two-Qubit Gate Operation on Selected Nearest-Neighbor Neutral Atom Qubits2014

    • Author(s)
      E. H. Lapasar, K. Kasamatsu, S. Nic Chor- maic, T. Takui, Y. Kondo, M. Nakahara and T. Ohmi
    • Journal Title

      J. Phys. Soc. Jpn

      Volume: 83 Issue: 4 Pages: 0440051-7

    • DOI

      10.7566/jpsj.83.044005

    • NAID

      210000133031

    • Related Report
      2014 Research-status Report 2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Composite pulses for NMR measurements2014

    • Author(s)
      Matsushima, Kei and Bando, Masamitsu and Ichikawa, Tsubasa and Nakahara, Mikio and Kondo, Yasushi
    • Journal Title

      Science and Technology

      Volume: 26 Pages: 33-39

    • Related Report
      2013 Research-status Report
  • [Journal Article] 頑強な量子ゲート : 複合量子ゲート(最近の研究から)2013

    • Author(s)
      坂東, 将光 and 市川, 翼 and 近藤, 康 and 中原, 幹夫
    • Journal Title

      日本物理學會誌

      Volume: 7 Pages: 459-463

    • NAID

      110009624996

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Implementation of a simple operator-quantum-error-correction scheme2013

    • Author(s)
      Yasushi Kondo, Chiara Bagnasco and Mikio Nakahara
    • Journal Title

      Physical Review A

      Volume: 88 Issue: 2 Pages: 0223141-5

    • DOI

      10.1103/physreva.88.022314

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Presentation] Suppression of decoherence by using the quantum Zeno effect2016

    • Author(s)
      Yasushi Kondo, Yuichiro Matsuzaki, Kei Matsushima and Jefferson G. Filgueiras
    • Organizer
      50'th Finnish Physical Society Meeting
    • Place of Presentation
      Oulu Univ., Finland
    • Year and Date
      2016-03-29
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] バンバン制御のパルス間隔最適化2016

    • Author(s)
      岩倉愛、近藤康
    • Organizer
      日本物理学会2016年春季大会
    • Place of Presentation
      東北学院大学、仙台
    • Year and Date
      2016-03-19
    • Related Report
      2015 Annual Research Report
  • [Presentation] NMR量子コンピューターのための卓上NMR装置2016

    • Author(s)
      ギットスイントプチャイ チョンラテープ、坂元友哉、菅原賢悟、近藤康
    • Organizer
      日本物理学会2016年春季大会
    • Place of Presentation
      東北学院大学、仙台
    • Year and Date
      2016-03-19
    • Related Report
      2015 Annual Research Report
  • [Presentation] NMRにおける量子ゼノン・ダイナミクス2016

    • Author(s)
      近藤康
    • Organizer
      日本物理学会2016年春季大会
    • Place of Presentation
      東北学院大学、仙台
    • Year and Date
      2016-03-19
    • Related Report
      2015 Annual Research Report
  • [Presentation] NMR system for studying phase decoherence2016

    • Author(s)
      Ai Iwakura and Yasushi Kondo
    • Organizer
      Int. Symp. on Dynamics in Artificial Quantum System
    • Place of Presentation
      東京大学(駒場)
    • Year and Date
      2016-01-12
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Composite Pulses in Quantum Information Processing and Nuclear Magnetic Resonance2015

    • Author(s)
      Tsubasa Ichikawa, Mikio Nakahara, Yasushi Kondo, Nobuaki Nemoto, Yukihiro Ota, Yutaka Shikano, Masamitsu Bando
    • Organizer
      ICQOQI2015
    • Place of Presentation
      Minsk, Belarus
    • Year and Date
      2015-10-27
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Applications of Concatenated Composite Pulses (CCCPs) to Solution NMR Experiments2015

    • Author(s)
      Nobuaki Nemoto, Tomomitsu Kurimoto, Toshihito Nakai, Masamitsu Bando, Tsubasa Ichikawa, Mikio Nakahara, Yutaka Shikano, and Yasushi Kondo
    • Organizer
      ISMAR2015
    • Place of Presentation
      上海、中国
    • Year and Date
      2015-08-16
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 最も単純なoperator-quantum-error-correction の実装2015

    • Author(s)
      坂東将光、近藤康
    • Organizer
      日本物理学会2015年春季大会
    • Place of Presentation
      早稲田大学、東京都
    • Year and Date
      2015-03-21 – 2015-03-25
    • Related Report
      2014 Research-status Report
  • [Presentation] 21aAN4 NMRによる位相緩和モデルの実装2015

    • Author(s)
      岩倉愛、坂東将光、近藤康
    • Organizer
      日本物理学会2015年春季大会
    • Place of Presentation
      早稲田大学、東京都
    • Year and Date
      2015-03-21 – 2015-03-24
    • Related Report
      2014 Research-status Report
  • [Presentation] 量子ゼノン効果による位相緩和の抑制2015

    • Author(s)
      近藤康、松崎雄一郎、松島恵、J. G. Filgueiras
    • Organizer
      日本物理学会2015年春季大会
    • Place of Presentation
      早稲田大学、東京都
    • Year and Date
      2015-03-21 – 2015-03-24
    • Related Report
      2014 Research-status Report
  • [Presentation] 27aAY-1:複合量子ゲートの有用性の実験的検証2014

    • Author(s)
      松島恵、坂東将光、近藤康
    • Organizer
      日本物理学会2014年春季大会
    • Place of Presentation
      東海大学(神奈川県)
    • Related Report
      2013 Research-status Report
  • [Presentation] 25aBB-2:A Simple Operator Quantum Error Correction Scheme Avoiding Fully Correlated Noise2013

    • Author(s)
      Yasushi Kondo, Chiara Bagnasco, Mikio Nakahara
    • Organizer
      日本物理学会2013年秋季大会
    • Place of Presentation
      徳島大学 (徳島県)
    • Related Report
      2013 Research-status Report
  • [Presentation] 26aKD-1: 複合パルスを用いたNMRパルス列の理論的考察2013

    • Author(s)
      坂東将光, 市川翼, 近藤康, 中原幹夫, 鹿野豊
    • Organizer
      日本物理学会2013年秋季大会
    • Place of Presentation
      徳島大学(徳島県)
    • Related Report
      2013 Research-status Report
  • [Remarks] Research

    • URL

      http://qube.phys.kindai.ac.jp/users/kondo/research.html

    • Related Report
      2015 Annual Research Report
  • [Remarks] Research

    • URL

      http://qube.phys.kindai.ac.jp/users/kondo/

    • Related Report
      2014 Research-status Report
  • [Remarks] Research

    • URL

      http://qube.phys.kindai.ac.jp/users/kondo/research.html

    • Related Report
      2013 Research-status Report

URL: 

Published: 2014-07-25   Modified: 2022-01-31  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi