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New developments in infinite dimensional stochastic analysis based on constructions of spaces of generalized functionals and applications to quantum information theory

Research Project

Project/Area Number 19K03592
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 12020:Mathematical analysis-related
Research InstitutionMeijo University

Principal Investigator

Saito Kimiaki  名城大学, 理工学部, 教授 (90195983)

Co-Investigator(Kenkyū-buntansha) 三町 祐子  名城大学, 理工学部, 准教授 (00218629)
Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2021: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords超汎関数空間 / 無限次元確率解析 / 無限次元ラプラシアン / 量子確率過程 / 量子確率論 / ホワイトノイズ理論 / 力学系理論 / 数理ファイナンス / 量子情報論 / 超汎関数空間論
Outline of Research at the Start

これまでの基盤研究において,超関数空間を新しく構成し繰り込みをせずに,無限次元ブラウン運動の冪を自然に定義することに成功している.本研究においては,この超関数空間を基に新しい超汎関数空間を構成し,この空間に基づく無限次元確率解析を構築して,応用展開する.本解析では量子場の理論での発散量を超関数として数学的定式化することができ,その解決が期待できる.そのために必要な一般化されたレヴィ・ラプラス作用素に基づく確率解析を整備し,量子確率論などへの関連付けを念頭におき,理論展開を試みる.無限次元解析に新しい手法を導入し,量子確率論,量子情報論,力学系理論等への展開を新しいものとすることが期待される.

Outline of Final Research Achievements

Through this basic research, especially based on the construction of spaces of white noise distributions, we constructed an infinite dimensional stochastic analysis, and obtained many results in the development of applications to quantum probability theory and quantum information analysis. We have reconsidered the spaces of white noise distributions as a direct Wiener integral, randomized the domain of the higher order Levy Laplacian, and succeeded in representing the infinite dimensional Brownian motion in continuous time. Moreover, we developed a stochastic analysis on delta distributions of an infinite dimensional Brownian motion and constructed a new analysis of white noise distributions. In addition, we gave the significance of quantum probability theory to the law of Cesaro-type quantum large numbers and a characterization of higher order Levy Laplacian.

Academic Significance and Societal Importance of the Research Achievements

超関数空間を新しく構成し,無限次元ブラウン運動のべき乗を定義することに成功した結果は,量子場の理論での発散量δ(0)を超関数として定式化することにより繰り込み無しで回避することができるという独自性があり,この超関数空間を基に新しい超汎関数空間を構成し,無限次元確率解析を構築する.本研究は場の理論のYang-Mills 方程式と等価であるLevy Laplace方程式の研究基盤となるものである.本研究における確率解析の理論面の整備,応用展開は他にない独創的な研究であり,無限次元解析に新手法を導入し, 量子確率論、量子情報論,量子力学系理論などへの展開を新しいものとする意義のある研究である.

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (20 results)

All 2022 2021 2020 2019 Other

All Int'l Joint Research (12 results) Journal Article (5 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 5 results,  Open Access: 3 results) Presentation (1 results) (of which Invited: 1 results) Remarks (1 results) Funded Workshop (1 results)

  • [Int'l Joint Research] ローマ・トルヴェルガタ大学/ヴォルテラセンター(イタリア)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] 忠北国立大学/漢陽大学(韓国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] ルイジアナ州立大学(米国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] University of Roma Ⅱ(イタリア)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] Chungbuk National University(韓国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] Louisiana State University(米国)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] University of Roma Ⅱ(イタリア)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] Chungbuk National University(韓国)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] Louisiana State University(米国)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] Louisiana State University(米国)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] University of Rome Torvergata(イタリア)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] Chungbuk National University(韓国)

    • Related Report
      2019 Research-status Report
  • [Journal Article] Domain of Exotic Laplacian Constructed by Wiener Integrals of Exponential White Noise Distributions2022

    • Author(s)
      Luigi Accardi , Un Cig Ji , Kimiaki Saito
    • Journal Title

      Journal of Stochastic Analysis

      Volume: 3 Issue: 3 Pages: 1-20

    • DOI

      10.31390/josa.3.3.01

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The Levy Laplacian and Stochastic Processes2021

    • Author(s)
      Kimiaki Saito
    • Journal Title

      Infinite dimensional harmonic analysis(KURENAI 登録2021)

      Volume: 2 Pages: 306-318

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] White noise delta functions and infinite-dimensional Laplacians2020

    • Author(s)
      Luigi Accardi, Ai Hasegawa, Un Cig Ji, Kimiaki Saito
    • Journal Title

      Infinite Dimensional Analysis, Quantum Probability and Related Topics

      Volume: 23 Issue: 04 Pages: 2050028-2050028

    • DOI

      10.1142/s0219025720500289

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Characterization of S-transform for general construction of infinite-dimensional distributions2019

    • Author(s)
      Luigi Accardi, Un Cig Ji and Kimiaki Sait^o
    • Journal Title

      Infinite Dimensional Analysis, Quantum Probability and Related Topics

      Volume: 22 Issue: 02 Pages: 1950015-1950015

    • DOI

      10.1142/s0219025719500152

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Anticipating exponential processes and stochastic differential equations2019

    • Author(s)
      Chii-Ruey Hwang, Hui-Hsiung Kuo and Kimiaki Sait^o
    • Journal Title

      Communications on Stochastic Analysis

      Volume: 13 Issue: 3

    • DOI

      10.31390/cosa.13.3.09

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] White noise delta distributions and infinite dimensional Laplacians2019

    • Author(s)
      Kimiaki Sait^o
    • Organizer
      Joint research on Infinite Dimensional Analysis and Quantum Probability, Chungbuk National University
    • Related Report
      2019 Research-status Report
    • Invited
  • [Remarks] Editorial Board: Journal of Stochastic Analysis

    • URL

      https://digitalcommons.lsu.edu/josa/editorialboard.html

    • Related Report
      2020 Research-status Report
  • [Funded Workshop] Workshop on Infinite Dimensional Analysis and Quantum Probability2022

    • Related Report
      2022 Annual Research Report

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Published: 2019-04-18   Modified: 2024-01-30  

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