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Field-Theoretic Study of Nonequilibrium Quantum Transport under Fast-Driven External Field

Research Project

Project/Area Number 15K05124
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Condensed matter physics I
Research InstitutionThe University of Tokyo

Principal Investigator

Kato Takeo  東京大学, 物性研究所, 准教授 (80332956)

Co-Investigator(Renkei-kenkyūsha) SAKANO Rui  東京大学, 物性研究所, 助教 (00625022)
Project Period (FY) 2015-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsメゾスコピック系 / 非平衡統計力学 / スピントロニクス / 量子輸送理論 / 物性理論 / 量子ドット / 光物性 / フォノン輸送
Outline of Final Research Achievements

We performed theoretical studies on nano-scale devices under fast driving: (1) We constructed a theory of current fluctuation under strong periodic external fields for quantum dots with Coulomb interaction. (2) We constructed a theory of spin-current fluctuation for spin-current generation at an interface between a ferromagnetic insulator and a metal due to spin Seebeck effect and spin pumping. (3) We constructed a theory of charge pumping in quantum dot systems under periodic modulation of reservoir parameters. (4) We studied heat transport via a nano-scale device theoretically. (5) We discussed fast magnetic response of a ferromagnetic insulator ErFeO3.

Report

(4 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (23 results)

All 2018 2017 2016 2015 Other

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 2 results,  Acknowledgement Compliant: 2 results) Presentation (15 results) Remarks (3 results)

  • [Journal Article] Spin Current Noise of the Spin Seebeck Effect and Spin Pumping2018

    • Author(s)
      Mamoru Matsuo, Yuichi Ohnuma, Takeo Kato, and Sadamichi Maekawa
    • Journal Title

      Physical Review Letters

      Volume: 120 Issue: 3 Pages: 037201-037201

    • DOI

      10.1103/physrevlett.120.037201

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of Interaction on Reservoir-Parameter-Driven Adiabatic Charge Pumping via a Single-Level Quantum Dot System2018

    • Author(s)
      Masahiro Hasegawa, and Takeo Kato
    • Journal Title

      Journal of Physical Society of Japan

      Volume: 87 Issue: 4 Pages: 044709-044709

    • DOI

      10.7566/jpsj.87.044709

    • NAID

      210000134792

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Observation of long-lived coherent spin precession in orthoferrite ErFeO3 induced by terahertz magnetic fields2017

    • Author(s)
      Watanabe Hiroshi、Kurihara Takayuki、Kato Takeo、Yamaguchi Keita、Suemoto Tohru
    • Journal Title

      Applied Physics Letters

      Volume: 111 Issue: 9 Pages: 092401-092401

    • DOI

      10.1063/1.4985035

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Temperature-Driven and Electrochemical-Potential-Driven Adiabatic Pumping via a Quantum Dot2017

    • Author(s)
      M. Hasegawa and T. Kato
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 86 Issue: 2 Pages: 024710-024710

    • DOI

      10.7566/jpsj.86.024710

    • NAID

      210000134271

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Effects of Coulomb interaction on photon-assisted current noise through a quantum dot2015

    • Author(s)
      T. J. Suzuki and T. Kato
    • Journal Title

      Phys. Rev. B

      Volume: 91 Issue: 16

    • DOI

      10.1103/physrevb.91.165302

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] 二準位系を介したフォノン輸送の連続時間量子モンテカルロ法による解析2018

    • Author(s)
      山本剛史, 加藤岳生, 齊藤圭司
    • Organizer
      日本物理学会第73回年次大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] スピン流ショットノイズの理論2017

    • Author(s)
      松尾衛, 大沼悠一, 加藤岳生, 前川禎通
    • Organizer
      日本物理学会2017年秋季大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 単一準位量子ドットを介した断熱温度ポンピングにおけるクーロン相互作用の効果2017

    • Author(s)
      長谷川雅大, 加藤岳生
    • Organizer
      日本物理学会2017年秋季大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 量子モンテカルロ法を用いた1次元電子系中の不純物ポテンシャル問題の数値的研究2017

    • Author(s)
      島田典明, 加藤岳生
    • Organizer
      日本物理学会2017年秋季大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Pb(111)/Mn5Ge3界面における超伝導強磁性近接効果のSTM観察2017

    • Author(s)
      長谷川幸雄, Kim Howon, 永井佑紀, 加藤岳生
    • Organizer
      日本物理学会2017年秋季大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Heat transport via a local two-state system2017

    • Author(s)
      Takeo Kato
    • Organizer
      Nanophysics, from fundamental to applications: reloaded (Vietnam 2017)
    • Related Report
      2017 Annual Research Report
  • [Presentation] Formalism of temperature-driven adiabatic charge pumping via a single level quantum dot in coherent transport region2017

    • Author(s)
      Masahiro Hasegawa
    • Organizer
      Nanophysics, from fundamental to applications: reloaded (Vietnam 2017)
    • Related Report
      2017 Annual Research Report
  • [Presentation] 単一準位量子ドット系における断熱ポンピングの形式論2016

    • Author(s)
      長谷川雅大, 加藤岳生
    • Organizer
      日本物理学会2016年秋季大会(東北学院大学)
    • Place of Presentation
      金沢大学(石川県金沢市)
    • Year and Date
      2016-09-15
    • Related Report
      2016 Research-status Report
  • [Presentation] 近藤模型のベーテ仮設解と形状因子2016

    • Author(s)
      加藤岳生, 和田義人, 桂法称, 堺和光
    • Organizer
      日本物理学会2016年秋季大会(東北学院大学)
    • Place of Presentation
      金沢大学(石川県金沢市)
    • Year and Date
      2016-09-15
    • Related Report
      2016 Research-status Report
  • [Presentation] 二準位系を介した熱輸送特性における量子相転移2016

    • Author(s)
      加藤聖也, 加藤岳生, 齊藤圭司
    • Organizer
      日本物理学会2016年秋季大会
    • Place of Presentation
      金沢大学(石川県金沢市)
    • Year and Date
      2016-09-13
    • Related Report
      2016 Research-status Report
  • [Presentation] Temperature-driven and chemical-potential driven adiabatic pumping in coherent electron transport2016

    • Author(s)
      Masahiro Hasegawa and Takeo Kato
    • Organizer
      The 26th IUPAP International conference on Statistical Physics (STATPHYS26)
    • Place of Presentation
      フランス・リヨン
    • Year and Date
      2016-07-18
    • Related Report
      2016 Research-status Report
  • [Presentation] Heat transport via a local two-state system coupled to non-ohmic baths2016

    • Author(s)
      Kato Masanari, Takeo Kato, Keiji Saito
    • Organizer
      The 26th IUPAP International conference on Statistical Physics (STATPHYS26)
    • Place of Presentation
      フランス・リヨン
    • Year and Date
      2016-07-18
    • Related Report
      2016 Research-status Report
  • [Presentation] Pb(111)表面における原子接触領域での電気伝導の第一原理固有チャネル解析2016

    • Author(s)
      河村光晶, Howon Kim, 長谷川幸雄, 加藤岳生, 尾崎泰助
    • Organizer
      日本物理学会第71回年次大会
    • Place of Presentation
      東北学院大学泉キャンパス(宮城県・仙台市)
    • Year and Date
      2016-03-22
    • Related Report
      2015 Research-status Report
  • [Presentation] 量子ドット系における温度ポンプの理論2016

    • Author(s)
      長谷川雅大, 加藤岳生
    • Organizer
      日本物理学会第71回年次大会
    • Place of Presentation
      東北学院大学泉キャンパス(宮城県・仙台市)
    • Year and Date
      2016-03-19
    • Related Report
      2015 Research-status Report
  • [Presentation] 量子モンテカルロ法による二準位系を介した熱輸送特性の理論的評価2016

    • Author(s)
      加藤聖也, 加藤岳生, 齊藤圭司
    • Organizer
      日本物理学会第71回年次大会
    • Place of Presentation
      東北学院大学泉キャンパス(宮城県・仙台市)
    • Year and Date
      2016-03-19
    • Related Report
      2015 Research-status Report
  • [Remarks] 加藤研究室公式ホームページ

    • URL

      http://www.issp.u-tokyo.ac.jp/maincontents/organization/labs/kato_group.html

    • Related Report
      2017 Annual Research Report
  • [Remarks] プレスリリース 「スピン流の雑音から情報を引き出す ~スピン流高効率制御に向けた新手法~」

    • URL

      http://www.issp.u-tokyo.ac.jp/maincontents/news2.html?pid=4157

    • Related Report
      2017 Annual Research Report
  • [Remarks] 加藤研究室

    • URL

      http://www.issp.u-tokyo.ac.jp/maincontents/organization/labs/kato_group.html

    • Related Report
      2016 Research-status Report 2015 Research-status Report

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Published: 2015-04-16   Modified: 2020-05-15  

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