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Fractional statistics of Laughlin quasiparticles in a fractional quantum Hall system

Research Project

Project/Area Number 25800176
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Condensed matter physics I
Research InstitutionTokyo Institute of Technology

Principal Investigator

HASHISAKA Masayuki  東京工業大学, 理工学研究科, 助教 (80550649)

Project Period (FY) 2013-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords量子ホール効果 / 分数電荷準粒子 / 朝永ラッティンジャー液体 / 電流ゆらぎ相関測定 / 電流ゆらぎ相互相関 / 分数統計
Outline of Final Research Achievements

We succeeded in developing a high-precision noise cross-correlation measurement system, which is applicable for the shot-noise measurements on solid-state devices placed at very low temperatures. Creation of fractional quasiparticles in a local fractional quantum Hall system embedded in an integer quantum Hall system is detected using the cross-correlation technique. Moreover, energy dissipation in a quantum Hall edge state is measured using the technique in a re-partitioning experiment performed on tunneling quasiparticles. These result encourage us to investigate the fractional statistics of Laughlin quasiparticles in fractional quantum Hall systems.

Report

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

    (14 results)

All 2015 2014 2013 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Acknowledgement Compliant: 1 results) Presentation (11 results) (of which Invited: 3 results) Remarks (1 results)

  • [Journal Article] Shot-noise evidence of fractional quasiparticle creation in a local fractional quantum Hall state2015

    • Author(s)
      M. Hashisaka, T. Ota, K. Muraki, and T. Fujisawa
    • Journal Title

      Phys. Rev. Lett

      Volume: 114 Issue: 5

    • DOI

      10.1103/physrevlett.114.056802

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Cross-correlation measurement of quantum shot noise using homemade transimpedance amplifiers2014

    • Author(s)
      Masayuki Hashisaka, Tomoaki Ota, Masakazu Yamagishi, Toshimasa Fujisawa, and Koji Muraki
    • Journal Title

      Review of Scientific Instruments

      Volume: 85 Issue: 5

    • DOI

      10.1063/1.4875588

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Fractional charge tunneling through a local fractional quantum Hall system measured using cross-correlation noise measurements2015

    • Author(s)
      Masayuki Hashisaka
    • Organizer
      New Perspectives in Spintronic and Mesoscopic Physics
    • Place of Presentation
      東京大学物性研究所
    • Year and Date
      2015-06-10 – 2015-06-12
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Creation of Fractional quasiparticles in a tunneling process through a local fractional quantum Hall system2015

    • Author(s)
      Masayuki Hashisaka
    • Organizer
      Kwant-workshop
    • Place of Presentation
      Grenoble, France
    • Year and Date
      2015-06-01 – 2015-06-05
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] 電流ゆらぎ相互相関測定による量子ホール端における電子の非弾性散乱の検出2015

    • Author(s)
      太田智明,橋坂昌幸,村木康二,藤澤利正
    • Organizer
      日本物理学会 第70回年次大会
    • Place of Presentation
      早稲田大学
    • Year and Date
      2015-03-21 – 2015-03-24
    • Related Report
      2014 Annual Research Report
  • [Presentation] 局所的な分数量子ホール領域における分数電荷準粒子の生成2014

    • Author(s)
      橋坂昌幸,太田智明,村木康二,藤澤利正
    • Organizer
      日本物理学会 2014年秋季大会
    • Place of Presentation
      中部大学
    • Year and Date
      2014-10-07 – 2014-10-11
    • Related Report
      2014 Annual Research Report
  • [Presentation] 量子ホール端における再分配されたショット雑音の相互相関測定2014

    • Author(s)
      太田智明,橋坂昌幸,村木康二,藤澤利正
    • Organizer
      日本物理学会 2014年秋季大会
    • Place of Presentation
      中部大学
    • Year and Date
      2014-10-07 – 2014-10-11
    • Related Report
      2014 Annual Research Report
  • [Presentation] Fractional Charge Tunneling through a Local Fractional Quantum Hall Region2014

    • Author(s)
      Masayuki Hashisaka, Tomoaki Ota, Koji Muraki, Toshimasa Fujisawa
    • Organizer
      32nd International Conference on Physics of Semiconductor
    • Place of Presentation
      Austin, Texas, USA
    • Year and Date
      2014-08-10 – 2014-08-15
    • Related Report
      2014 Annual Research Report
  • [Presentation] Cross Correlation Measurement of Repartitioned Noise in a Quantum Hall Edge Channel2014

    • Author(s)
      Tomoaki Ota, Masayuki Hashisaka, Koji Muraki, Toshimasa Fujisawa
    • Organizer
      32nd International Conference on Physics of Semiconductor
    • Place of Presentation
      Austin, Texas, USA
    • Year and Date
      2014-08-10 – 2014-08-15
    • Related Report
      2014 Annual Research Report
  • [Presentation] Shot noise of quasiparticles at local fractional quantum Hall states measured by a cross correlation technique2013

    • Author(s)
      M. Hashisaka, T. Ota, K.Muraki, T. Fujisawa
    • Organizer
      20th International Conference on Electronic Properties of Two-Dimensional Systems (EP2DS-20)
    • Place of Presentation
      Wroclaw, Poland
    • Related Report
      2013 Research-status Report
  • [Presentation] Shot noise of fractional quasiparticles in a local fractional quantum Hall states embedded in an integer quantum Hall regime2013

    • Author(s)
      M. Hashisaka, T. Ota, K.Muraki, T. Fujisawa
    • Organizer
      International Symposium on Nanoscale Transport and Technology (ISNTT 2013)
    • Place of Presentation
      神奈川県厚木市
    • Related Report
      2013 Research-status Report
    • Invited
  • [Presentation] 局所的な分数量子ホール領域における分数電荷の分配雑音2013

    • Author(s)
      橋坂昌幸, 太田智明, 村木康二, 藤澤利正
    • Organizer
      日本物理学会 2013年 秋季大会
    • Place of Presentation
      徳島県徳島市
    • Related Report
      2013 Research-status Report
  • [Presentation] 量子ホール端におけるショット雑音の再分配による正の電流相互相関2013

    • Author(s)
      太田智明, 橋坂昌幸, 村木康二, 藤澤利正
    • Organizer
      日本物理学会 2013年 秋季大会
    • Place of Presentation
      徳島県徳島市
    • Related Report
      2013 Research-status Report
  • [Remarks] 東京工業大学 大学院理工学研究科 理学系 物性物理学専攻 藤澤研究室 橋坂 昌幸

    • URL

      http://fujisawa.phys.titech.ac.jp/~hashisaka/

    • Related Report
      2014 Annual Research Report

URL: 

Published: 2014-07-25   Modified: 2020-05-15  

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