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Research of nonlinear dispersive equations with stochastic effects

Research Project

Project/Area Number 15K04944
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Mathematical analysis
Research InstitutionTohoku University

Principal Investigator

Fukuizumi Reika  東北大学, 情報科学研究科, 准教授 (00374182)

Research Collaborator Adami Riccardo  
Holmer Justin  
Segawa Etsuo  
Anne de Bouard  
Poncet Romain  
Debussche Arnaud  
Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords解析学 / 非線形分散型方程式 / 散乱 / 時間大域的挙動 / 時間大域挙動 / 解の散乱 / 量子グラフ / 非線形シュレディンガー方程式 / 光通信モデル / 光通信 / 分散性 / 非線形偏微分方程式論 / 確率論 / シュレディンガー方程式 / 量子渦
Outline of Final Research Achievements

We studied a model that describes a wave propagation in a one-dimensional linear medium containing a narrow strip of nonlinear material, where the nonlinear strip is assumed to be much smaller than the typical wavelength. This model is used, for example, a wave propagation in nanodevices. We showed that for a large non linearity (called mass super critical), if the initial energy is below the energy of the ground state, the solution scatters in the energy class. Moreover we investigated the asymptotic distribution of the quantum walk associated with this nanodevice model.
On the other hand, we considered the Gross-Pitaevskii equation at positive temperature, where the temperature effect is described by a dissipation and white noise in the equation. We showed that the system converges exponentially to the Gibbs equilibrium as times goes to infinity, in one spatial dimension.

Academic Significance and Societal Importance of the Research Achievements

本研究では, ボース・アインシュタイン凝縮や光ファイバー通信のモデルに現れる, 確率的な摂動を伴う非線形シュレディンガー方程式について, 解の挙動, および摂動の特殊解(定在波・渦など) への影響を理論的に解明し, 物理や工学において期待される現象の数学的実証を行うのが目的である. 本研究の成果により, ナノデバイス中にスリットがある場合に内部を伝搬する波がどのような時間大域的挙動をするのか数学により解明された. また, 熱的効果を考慮したボース・アインシュタイン凝縮モデルの凝縮体波動関数の分布が時間無限大で指数的に Gibbs 分布に収束することも厳密に正当化した.

Report

(5 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (29 results)

All 2019 2018 2017 2016 2015 Other

All Int'l Joint Research (8 results) Journal Article (7 results) (of which Int'l Joint Research: 7 results,  Peer Reviewed: 6 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (10 results) (of which Int'l Joint Research: 7 results,  Invited: 9 results) Remarks (4 results)

  • [Int'l Joint Research] Politecnico di Torino(イタリア)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Brown University(米国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Politecnico di Trino(イタリア)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] Ecole Polytechnique/ENS Rennes(フランス)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] Brown University(米国)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] Politecnico di Torino(イタリア)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] Brown University(米国)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] Ecole Polytechnique/Ecole Normale Superieure de Rennes/Commissariat a l'energie atomique(フランス)

    • Related Report
      2015 Research-status Report
  • [Journal Article] A nonlinear quantum walk induced by a quantum graph with nonlinear delta potentials2019

    • Author(s)
      Adami Riccardo、Fukuizumi Reika、Segawa Etsuo
    • Journal Title

      Quantum Information Processing

      Volume: 18 Issue: 4 Pages: 119-119

    • DOI

      10.1007/s11128-019-2215-8

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Fluctuations and temperature effects in bose-einstein condensation2018

    • Author(s)
      de Bouard Anne、Debussche Arnaud、Fukuizumi Reika、Poncet Romain
    • Journal Title

      ESAIM: Proceedings and Surveys

      Volume: 61 Pages: 55-67

    • DOI

      10.1051/proc/201861055

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Long Time Behavior of Gross--Pitaevskii Equation at Positive Temperature2018

    • Author(s)
      De Bouard Anne、Debussche Arnaud、Fukuizumi Reika
    • Journal Title

      SIAM Journal on Mathematical Analysis

      Volume: 50 Issue: 6 Pages: 5887-5920

    • DOI

      10.1137/17m1149195

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Fluctuation and temperature effects in Bose -Einstein condensation2018

    • Author(s)
      Anne de Bouard, Arnaud Debussche, Reika Fukuizumi, Romain Poncet
    • Journal Title

      ESAIM: proceedings and surveys

      Volume: 印刷中

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Schroedinger equation with point nonlinearity2017

    • Author(s)
      Riccardo Adami, Reika Fukuizumi and Justin Holmer
    • Journal Title

      Oberwolbach 数学研究所レポート

      Volume: 29 Issue: 2 Pages: 1828-1831

    • DOI

      10.4171/owr/2017/29

    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Journal Article] Corrigendum; Stationary problem related to nonlinear Schrodinger equations on the unit ball2016

    • Author(s)
      R.Fukuizumi, F.Hadj Selem and H.Kikuchi
    • Journal Title

      Nonlinearity

      Volume: 印刷中

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Vortex solutions in Bose-Einstein condensation under a trapping potential varying randomly in time2015

    • Author(s)
      A.de Bouard, R.Fukuizumi and R.Poncet
    • Journal Title

      Discrete Contin. Dyn. Syst. Ser. B

      Volume: 20 Issue: 9 Pages: 2793-2817

    • DOI

      10.3934/dcdsb.2015.20.2793

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] On the stochastic Gross-Pitaevskii equation2019

    • Author(s)
      福泉麗佳
    • Organizer
      Okayama Workshop on Stochastic Analysis 2019, 岡山大学
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] BEC model with a trapping potential varying randomly in time- a review2019

    • Author(s)
      福泉麗佳
    • Organizer
      Scientific Computing Across Scales: Quantum Systems in Cold-matter Physics and Chemistry,Fields Institute, Toronto, Canada
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Some theoretical studies on the stochastic Gross-Pitaevskii equation2018

    • Author(s)
      福泉麗佳
    • Organizer
      The 12th AIMS Conference on Dynamical Systems, Differential Equations and Applications, Taipei, Taiwan
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Scattering in the Schroedinger equation with a point nonlinearity2018

    • Author(s)
      福泉麗佳
    • Organizer
      The 12th AIMS Conference on Dynamical Systems, Differential Equations and Applications, Taipei, Taiwan
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] On the stochastic Gross-Pitaevskii equation2018

    • Author(s)
      福泉麗佳
    • Organizer
      Conference of Mathematics on Wave Phenomena, KIT, Germany
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Bose-Einstein 凝縮モデルにおける温度効果2018

    • Author(s)
      福泉麗佳
    • Organizer
      日本数学会 2018 年度秋季総合分科会特別講演
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Recent progress of theoretical and numerical research for BEC models2018

    • Author(s)
      Reika Fukuizumi
    • Organizer
      第4階量子渦と非線形波動, 東京理科大学
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] Schroedinger equation with point nonlinearity2017

    • Author(s)
      Reika Fukuizumi
    • Organizer
      Oberwolbach workshop, Nonlinear Partial Differential Equations on Graphs
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] On the Gibbs equilibrium in stochastic complex Ginzburg-Landau equations2017

    • Author(s)
      Reika Fukuizumi
    • Organizer
      2017年確率論シンポジウム, 東北大学片平キャンパスさくらホール
    • Related Report
      2017 Research-status Report
  • [Presentation] Gibbs measure for the Gross-Pitaevskii equation driven by a space-time white noise2016

    • Author(s)
      福泉麗佳
    • Organizer
      研究会「量子渦と非線形波動」
    • Place of Presentation
      東京理科大学 (東京都)
    • Year and Date
      2016-01-20
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research / Invited
  • [Remarks] http://www.math.is.tohoku.ac.jp/~fukuizumi

    • Related Report
      2018 Annual Research Report
  • [Remarks]

    • URL

      http://www.math.is.tohoku.ac.jp/~fukuizumi/

    • Related Report
      2017 Research-status Report
  • [Remarks]

    • URL

      http://www.math.is.tohoku.ac.jp/~fukuizumi/

    • Related Report
      2016 Research-status Report
  • [Remarks] REIKA FUKUIZUMI/Publications

    • URL

      http://www.math.is.tohoku.ac.jp/~fukuizumi

    • Related Report
      2015 Research-status Report

URL: 

Published: 2015-04-16   Modified: 2022-02-21  

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