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Operator and Spectral Analyses for Differential Operators with Matrix-Coefficient

Research Project

Project/Area Number 26400117
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Basic analysis
Research InstitutionHiroshima University

Principal Investigator

HIROKAWA Masao  広島大学, 工学研究科, 教授 (70282788)

Co-Investigator(Renkei-kenkyūsha) KAWABI Hiroshi  岡山大学, 大学院自然科学研究科, 教授 (80432904)
Project Period (FY) 2014-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords回路電磁気学 / 一般化された量子ラビ模型 / ディラック粒子 / 接合を持った量子細線 / 深強結合領域 / 一般化された量子Rabi模型 / 仮想光子 / 実光子 / 物理的状態 / 裸の状態 / ラビ模型 / 量子相転移 / Rabi 模型 / Rabi model / Jaynes-Cummings model / energy level crossing
Outline of Final Research Achievements

In this research program, we considered the following two mathematical models. (1) We studied some quantum effects mainly for the generalized quantum Rabi model among non-commutative harmonic oscillator models. In particular, in the light of circuit QED, we made operator and spectral analyses for that model, and we mathematically clarified its bound state in the deep-strong coupling regime. Meanwhile, (2) for the model of the two quantum wires with a junction between the two, we clarified how the electron's wave function have a phase factor, and how the electron spin has an effect when the electron as a Dirac particle passes through the junction.

Report

(5 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (15 results)

All 2017 2016 2015 2014 Other

All Int'l Joint Research (1 results) Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results,  Acknowledgement Compliant: 3 results) Presentation (8 results) (of which Int'l Joint Research: 3 results,  Invited: 4 results) Book (1 results)

  • [Int'l Joint Research] Aarhus University(Denmark)

    • Related Report
      2017 Annual Research Report
  • [Journal Article] A mathematical analysis of dressed photon in ground state of generalized quantum Rabi model using pair theory2017

    • Author(s)
      Hirokawa Masao, Moeller Jacob S, Sasaki Itaru
    • Journal Title

      Journal of Physics A: Mathematical and Theoretical

      Volume: 50 Issue: 18 Pages: 184003-184003

    • DOI

      10.1088/1751-8121/aa677c

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] A mathematical modeling of electron-phonon interaction for small wave numbers close to zero2017

    • Author(s)
      M. Hirokawa
    • Journal Title

      EMS Series of Congress Reports, Functional Analysis and Operator Theory for Quantum Physics

      Volume: The P. Exner Anniversary Vol. Pages: 373-400

    • DOI

      10.4171/175-1/18

    • ISBN
      9783037191750, 9783037196755
    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Duality between A Dark State And A Quasi-Dark State2017

    • Author(s)
      Masao Hirokawa
    • Journal Title

      Annals of Physics (N.Y.)

      Volume: 377 Pages: 229-242

    • DOI

      10.1016/j.aop.2016.12.032

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] The Rabi model gives off a flavor of spontaneous SUSY breaking2015

    • Author(s)
      Masao Hirokawa
    • Journal Title

      Quantum Studies: Mathematics and Foundations

      Volume: 2 Issue: 4 Pages: 379-388

    • DOI

      10.1007/s40509-015-0041-y

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Absence of energy level crossing for the ground state energy of the Rabi model2014

    • Author(s)
      M. Hirokawa, F. Hiroshima
    • Journal Title

      Communications on Stochastic Analysis

      Volume: 8 Pages: 551-560

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Possibility of Spintronic-Qubit Control Through Tunnel-Junction on Quantum Wire2017

    • Author(s)
      M. Hirokawa
    • Organizer
      BIT's 7th Annual World Congress of Nano Science & Technology 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Quantum simulation of the atom-light interaction2017

    • Author(s)
      M. Hirokawa
    • Organizer
      Quantum Circle at the Doppler Institute, Czech
    • Related Report
      2017 Annual Research Report
  • [Presentation] A Quantum Simulation of Cavity Optomechanics2017

    • Author(s)
      M. Hirokawa
    • Organizer
      Math/Phys Seminar at Aarhus University, Denmark
    • Related Report
      2017 Annual Research Report
  • [Presentation] Quantum simulation of atom coupled to Bose field(s)2017

    • Author(s)
      M. Hirokawa
    • Organizer
      現象数理セミナー,九州大学マス・フォア・インダストリ研究所
    • Related Report
      2017 Annual Research Report
  • [Presentation] A Mathematical Analysis of Photon in Ground State of Generalized Quantum Rabi Model with the A^2-Term2016

    • Author(s)
      Masao Hirokawa
    • Organizer
      International Workshop on Ultra-Strong Light-Matter Interactions: Theory and Applications to Quantum Information
    • Place of Presentation
      Quantum Technologies for Information Science, University of the Basque Country (スペイン)
    • Year and Date
      2016-09-19
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] How is the ground state of the quantum Rabi model dressed with a real photon?2016

    • Author(s)
      Masao Hirokawa
    • Organizer
      Mathematical quantum field theory and related topics
    • Place of Presentation
      九州大学マス・フォア・インダストリ研究所
    • Year and Date
      2016-06-08
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] On the Hepp-Lieb-Preparata quantum phase transition for the quantum Rabi model2016

    • Author(s)
      Masao Hirokawa
    • Organizer
      Technical Committee on Quantum Information Technology(量子情報技術研究会)
    • Place of Presentation
      高知工科大学
    • Year and Date
      2016-05-31
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] Quantum Phase Transition2016

    • Author(s)
      Masao Hirokawa
    • Organizer
      Joint Mathematics and Physics Seminar
    • Place of Presentation
      Aarhus University (Denmark)
    • Year and Date
      2016-03-17
    • Related Report
      2015 Research-status Report
    • Invited
  • [Book] 数物系に向けた フーリエ解析とヒルベルト空間論2017

    • Author(s)
      廣川真男
    • Total Pages
      192
    • Publisher
      サイエンス社
    • Related Report
      2017 Annual Research Report

URL: 

Published: 2014-04-04   Modified: 2023-03-16  

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