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2008 Fiscal Year Final Research Report

High-Tc Superconductor Quantum Computer using Intrinsic Josephson Junctions

Research Project

  • PDF
Project/Area Number 18310096
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Microdevices/Nanodevices
Research InstitutionTohoku University

Principal Investigator

SATO Shigeo  Tohoku University, 電気通信研究所, 准教授 (10282013)

Co-Investigator(Kenkyū-buntansha) NAKAJIMA Koji  東北大学, 電気通信研究所, 教授 (60125622)
HAYAKAWA Yoshihiro  東北大学, 電気通信研究所, 助教 (20250847)
ONOMI Takeshi  東北大学, 電気通信研究所, 助教 (70312676)
Project Period (FY) 2006 – 2008
Keywords量子計算機 / 高温超伝導体 / ジョセフソン接合 / 断熱的量子計算 / Bi-2212 / 量子ビット
Research Abstract

高温超伝導体のひとつであるBi-2212高温超伝導体の結晶中に自然に形成される固有ジョセフソン接合を用いた量子計算機実現に向けて研究を行い、マイクロ波照射による量子状態の共鳴励起に成功し、高温超伝導体量子ビットの有効性を示した。また合わせてデコヒーレンス許容型の量子計算アルゴリズムを提案し、その優位性を示した。

  • Research Products

    (13 results)

All 2009 2008 2007 2006 Other

All Journal Article (5 results) (of which Peer Reviewed: 3 results) Presentation (6 results) Book (1 results) Remarks (1 results)

  • [Journal Article] 高温超伝導体における巨視的量子トンネリング2009

    • Author(s)
      佐藤茂雄
    • Journal Title

      応用物理 78

      Pages: 2730

  • [Journal Article] Macroscopic Quantum Tunneling and Resonant Activation of Current Biased Intrinsic Josephson Junctions in Bi-22122007

    • Author(s)
      S. Sato, K. Inomata, M. Kinjo, N. Kitabatake, K. Nakajima, H. B. Wang, T. Hatano
    • Journal Title

      IEICE Trans. Electronics E90-C

      Pages: 599-604

  • [Journal Article] Study of macroscopic quantum tunnelling in Bi_2Sr_2CaCu_2O_<8+δ> intrinsic Josephson junctions2007

    • Author(s)
      K. Inomata, S. Sato, M. Kinjo, N. Kitabatake, H. B. Wang, T. Hatano, K. Nakajima
    • Journal Title

      Superconductor Science and Technology 20

      Pages: S105-S109

    • Peer Reviewed
  • [Journal Article] Quantum Neural Network Composed of Kane's Qubits, Jpn2006

    • Author(s)
      Y. Nakamiya, M. Kinjo, O. Takahashi, S. Sato, K. Nakajima
    • Journal Title

      Journal of Applied Physics 45

      Pages: 8030-8034

    • Peer Reviewed
  • [Journal Article] Hardware Implementation of an Inverse Function Delayed Neural Network Using Stochastic Logic, IEICE Trans2006

    • Author(s)
      H. Li, Hogge Li, Y. Hayakawa, S. Sato, K. Nakajima
    • Journal Title

      Inf.&Syst E89-D

      Pages: 2572-2578

    • Peer Reviewed
  • [Presentation] Study on the Performance of Neuromorphic Adiabatic Quantum Computation Algorithms2008

    • Author(s)
      A. Ono, S. Sato, M. Kinjo, K. Nakajima
    • Organizer
      2008 International Joint Conference on Neural Networks(IJCNN'08)
    • Place of Presentation
      Hong Kong
    • Year and Date
      2008-06-05
  • [Presentation] Resonant activation and multi-junction switching characteristics of Bi-2212 intrinsic Josephson junctions2008

    • Author(s)
      N. Kitabatake, K. Inomata, S. Sato, M. Kinjo, H. Wang, T. Hatano, K. Nakajima
    • Organizer
      2008 APS March Meeting
    • Place of Presentation
      New Orleans
    • Year and Date
      2008-03-08
  • [Presentation] Resonant Activation and Multiple Switching Characteristics of Bi-2212 Intrinsic Josephson Junctions2007

    • Author(s)
      N. Kitabatake, K. Inomata, M. Kinjo, S. Sato, K. Nakajima, H.B. Wang, T. Hatano
    • Organizer
      Abstracts of 8th European Conference on Applied Superconductivity
    • Place of Presentation
      Brussels
    • Year and Date
      2007-09-18
  • [Presentation] Study of Macroscopic Quantum Tunneling in Bi_2Sr_2CaCu_2O_<8+δ> Intrinsic Josephson Junctions2006

    • Author(s)
      K. Inomata, S. Sato, M. Kinjo, Y. Nakamiya, N .Kitabatake, H. Wang, T. Hatano, K. Nakajima
    • Organizer
      5th Int. Symp. Intrinsic Josephson Effect in High Tc Superconductors(Plasma 2006)
    • Place of Presentation
      London
    • Year and Date
      2006-07-18
  • [Presentation] A Study on Learning with a Quantum Neural Network2006

    • Author(s)
      M. Kinjo, S. Sato, K. Nakajima
    • Organizer
      2006 International Joint Conference on Neural Networks(IJCNN'06)
    • Place of Presentation
      Vancouver
    • Year and Date
      2006-07-17
  • [Presentation] Observation of Macroscopic Quantum Tunneling in Bi_2Sr_2CaCu_2O_<8+δ> Intrinsic Josephson Junctions2006

    • Author(s)
      K. Inomata, S. Sato, M. Kinjo, Y. Nakamiya, N. Kitabatake, H. Wang, T. Hatano, K. Nakajima
    • Organizer
      The 8th International Conference on Materials and Mechanisms of Superconductivity and High Temperature Superconductors(M2S-HTSC-VIII)
    • Place of Presentation
      Dresden
    • Year and Date
      2006-07-13
  • [Book] Complex-Valued Neural Networks : Utilizing High-Dimensional Parameters2009

    • Author(s)
      S. Sato, M. Kinjo
    • Publisher
      Information Science Reference
  • [Remarks]

    • URL

      http://www.nakajima.riec.tohoku.ac.jp

URL: 

Published: 2010-06-10   Modified: 2016-04-21  

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