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Control of topology of quantum systems by energy-scale deformation and its application

Research Project

Project/Area Number 24740255
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Mathematical physics/Fundamental condensed matter physics
Research InstitutionGunma University

Principal Investigator

HIKIHARA Toshiya  群馬大学, 大学院理工学府, 准教授 (00373358)

Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2012: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords物性基礎論 / 統計力学 / 量子情報理論 / 量子エレクトロニクス
Outline of Final Research Achievements

We study quantum many-body systems under an energy-scale deformation, in which the scale of local Hamiltonian is modified spatially. It has been shown that the sine-alpha deformation generates a strong entanglement between two parties located at open edges of a one-dimensional quantum system. We have clarified temperature and system-size dependences of the edge-to-edge entanglement of systems under the sine-alpha deformation. We have then discussed the possible application of the energy-scale deformation to quantum-information processing such as quantum teleportation. A method to generate novel quantum many-body states by controlling model parameters spatially and temporally is also proposed.

Report

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

    (14 results)

All 2015 2014 2013 2012 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (12 results) (of which Invited: 2 results)

  • [Journal Article] Long-distance entanglement in one-dimensional quantum systems under sinusoidal deformation2013

    • Author(s)
      Toshiya Hikihara and Takafumi Suzuki
    • Journal Title

      Physical Review A

      Volume: 87 Issue: 4

    • DOI

      10.1103/physreva.87.042337

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] エネルギー・スケール変調による量子系の境界条件・トポロジーの制御2012

    • Author(s)
      引原俊哉、桂法称、丸山勲、西野友年
    • Journal Title

      日本物理学会誌

      Volume: 67-6 Pages: 394-398

    • NAID

      10030864389

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Presentation] Quantum-state engineering in quantum many-body systems2015

    • Author(s)
      引原俊哉
    • Organizer
      物性理論・統計力学セミナー2015
    • Place of Presentation
      ラフォーレ箱根強羅(神奈川県足柄下郡箱根町)
    • Year and Date
      2015-03-12 – 2015-03-14
    • Related Report
      2014 Annual Research Report
  • [Presentation] 量子情報論的操作によるAffleck-Lieb-Kennedy-Tasaki状態の生成2014

    • Author(s)
      引原俊哉,森前智行
    • Organizer
      日本物理学会 2014年秋季大会
    • Place of Presentation
      中部大学春日井キャンパス(愛知県春日井市)
    • Year and Date
      2014-09-10
    • Related Report
      2014 Annual Research Report
  • [Presentation] サイン変形系の量子情報論的操作への応用2014

    • Author(s)
      引原俊哉
    • Organizer
      基礎物理学研究所研究会「量子情報の新展開」- 複雑性の極限における 普遍的物理の探求-
    • Place of Presentation
      京都大学基礎物理学研究所
    • Related Report
      2013 Research-status Report
  • [Presentation] サイン変形を施した一次元量子多体系の両端qubit 間に発生する長距離エンタン グルメント2013

    • Author(s)
      引原俊哉、鈴木隆史
    • Organizer
      量子情報技術研究会(QIT28)
    • Place of Presentation
      北海道大学
    • Related Report
      2013 Research-status Report
  • [Presentation] Entanglement generation via one-dimensional quantum systems under sinusoidal deformation2013

    • Author(s)
      T. Hikihara, T. Suzuki
    • Organizer
      ISSP international symposium, Emergent Quantum Phases in Condensed Matter (EQPCM2013)
    • Place of Presentation
      東京大学物性研究所
    • Related Report
      2013 Research-status Report
  • [Presentation] Sinusoidal deformation and its applications2013

    • Author(s)
      T. Hikihara, T. Suzuki
    • Organizer
      Statistical Physics of Quantum Matter (satellite conference of StatPhys25)
    • Place of Presentation
      台北市、台湾
    • Related Report
      2013 Research-status Report
  • [Presentation] Controlling entanglement distribution and Engineering quantum many-body states2013

    • Author(s)
      引原俊哉
    • Organizer
      強相関電子系理論の最前線- 若手によるオープン・イノベーション-
    • Place of Presentation
      勝浦観光ホテル(和歌山県東牟婁郡那智勝浦町天満1530)
    • Related Report
      2013 Research-status Report
  • [Presentation] 量子多体系におけるエンタングルメント:はじめに

    • Author(s)
      引原俊哉
    • Organizer
      日本物理学会2012年秋季大会
    • Place of Presentation
      横浜国立大学
    • Related Report
      2012 Research-status Report
  • [Presentation] 量子スピン系研究とエンタングルメント

    • Author(s)
      引原俊哉
    • Organizer
      基研研究会「量子スピン系の物理」
    • Place of Presentation
      京都大学基礎物理学研究所
    • Related Report
      2012 Research-status Report
    • Invited
  • [Presentation] 量子多体系研究における境界効果の効用

    • Author(s)
      引原俊哉
    • Organizer
      強相関電子系理論の最前線- 若手によるオープン・イノベーション-
    • Place of Presentation
      紀伊勝浦
    • Related Report
      2012 Research-status Report
    • Invited
  • [Presentation] サイン二乗変形を施した量子スピン系における長距離エンタングルメント

    • Author(s)
      引原俊哉
    • Organizer
      日本物理学会2012年秋季大会
    • Place of Presentation
      横浜国立大学
    • Related Report
      2012 Research-status Report
  • [Presentation] サイン変形を施した一次元量子多体系における長距離エンタングルメントの生成

    • Author(s)
      引原俊哉、鈴木隆史
    • Organizer
      日本物理学会第68回年次大会
    • Place of Presentation
      広島大学
    • Related Report
      2012 Research-status Report

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

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