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Derivation of Standard Model in String Theory --- Structure of Branes and Symmetry of Particles ---

Research Project

Project/Area Number 16K17711
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionOkinawa Institute of Science and Technology Graduate University (2018)
High Energy Accelerator Research Organization (2016-2017)

Principal Investigator

Funai (Shiba) Shotaro  沖縄科学技術大学院大学, 物理生物学ユニット, 研究員 (40724993)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Keywords超弦理論 / ブレーン / 対称性 / M理論 / F理論 / 標準模型 / 繰り込み群 / 機械学習 / カレント代数 / イジング模型 / 熱力学 / 素粒子物理
Outline of Final Research Achievements

String theory is known as a unified theory that can describe all the interactions among the elementary particles. However, this theory is defined in high dimensional spacetime, then we need to clarify its relation to four dimensions that we can recognize.
I especially focus on the branes (important objects in string theory), and discuss in detail how they can make four dimensional spacetime and a property of the interactions among the particles.
In the previous researches, for example, the former is trivial but the latter is not clear (or vice versa). In this research, I proposed a way to connect both discussions directly, and established a new approach to derive the property of particles from string theory.

Academic Significance and Societal Importance of the Research Achievements

超弦理論は、自然界を形作る素粒子の相互作用をすべて記述できる、優れた理論だと考えられている。ところが、10次元以上の高次元時空で表現される理論であるため、私たちが認識している4次元時空と、どのように関係しているかを理解することが重要である。そうすれば、私たちはより深い世界観を手にできる可能性がある。
私は本研究を通して、超弦理論(特にM理論)に登場するブレーンと呼ばれる物体と、素粒子の相互作用が宇宙の初めに持っていた性質(例外群)が、どのように関係し得るかを表現することに成功した。これによって、高次元時空の中でどのように4次元時空が創られたかについて、より理解を深めることができた。

Report

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

    (15 results)

All 2019 2018 2017 2016

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Open Access: 3 results,  Peer Reviewed: 3 results,  Acknowledgement Compliant: 1 results) Presentation (11 results) (of which Int'l Joint Research: 5 results,  Invited: 5 results)

  • [Journal Article] Thermodynamics and Feature Extraction by Machine Learning2018

    • Author(s)
      Shotaro Shiba Funai, Dimitrios Giataganas
    • Journal Title

      arXiv

      Volume: -

    • Related Report
      2018 Annual Research Report
    • Open Access / Int'l Joint Research
  • [Journal Article] M2- and M5-branes in E11 Current Algebra Formulation of M-theory2018

    • Author(s)
      Shotaro Shiba and Hirotaka Sugawara
    • Journal Title

      International Journal of Modern Physics A

      Volume: 33 Issue: 07 Pages: 1850051-1850051

    • DOI

      10.1142/s0217751x18500513

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Scale-invariant Feature Extraction of Neural Network and Renormalization Group Flow2018

    • Author(s)
      Satoshi Iso, Shotaro Shiba and Sumito Yokoo
    • Journal Title

      Physical Review E

      Volume: 97 Issue: 5 Pages: 053304-053304

    • DOI

      10.1103/physreve.97.053304

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Microstates of black holes in expanding universe from interacting branes2017

    • Author(s)
      Shotaro Shiba
    • Journal Title

      Journal of High Energy Physics

      Volume: 05 Issue: 5 Pages: 079-079

    • DOI

      10.1007/jhep05(2017)079

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] 機械学習による特徴抽出と繰り込み群や熱力学との関係2019

    • Author(s)
      船井正太郎
    • Organizer
      日本物理学会年次大会(シンポジウム講演)
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 機械学習と繰り込み群の関係2018

    • Author(s)
      船井正太郎
    • Organizer
      Deep Learning and Physics 2018(大阪大学)
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 平面図形の深層学習と複数の固定点をもつ繰り込み群との関係 II2018

    • Author(s)
      船井正太郎、磯暁、横尾純斗
    • Organizer
      日本物理学会秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Renormalization, Thermodynamics, and Feature Extraction of Machine Learning2018

    • Author(s)
      Shotaro Shiba Funai
    • Organizer
      Nagoya Workshop on Physics and Mathematics of Discrete Geometries(名古屋大学)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] M-branes in E_11 current algebra formulation of M-theory2018

    • Author(s)
      Shotaro Shiba
    • Organizer
      Sugawara Symposium on Fundamental Problems in Theoretical Physics
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] M-brane dynamics from E_11_ current algebra2017

    • Author(s)
      柴 正太郎
    • Organizer
      日本物理学会年次大会
    • Place of Presentation
      大阪大学(大阪府大阪市)
    • Year and Date
      2017-03-18
    • Related Report
      2016 Research-status Report
  • [Presentation] M-branes in E_11 current algebra2017

    • Author(s)
      Shotaro Shiba
    • Organizer
      Workshop on String and M-theory in Okinawa
    • Place of Presentation
      沖縄科学技術大学院大学(沖縄県恩納村)
    • Year and Date
      2017-03-08
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] イジング模型を用いた機械学習と繰り込み群の関係 I2017

    • Author(s)
      柴 正太郎、磯暁、横尾純斗
    • Organizer
      日本物理学会秋季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] On microstates of blackholes from time-dependent brane systems2016

    • Author(s)
      Shotaro Shiba
    • Organizer
      KEK Theory Workshop 2016
    • Place of Presentation
      高エネルギー加速器研究機構(茨城県つくば市)
    • Year and Date
      2016-12-06
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Analysis of time-dependent black brane systems as interacting branes2016

    • Author(s)
      柴 正太郎
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      宮崎大学(宮崎県宮崎市)
    • Year and Date
      2016-09-22
    • Related Report
      2016 Research-status Report
  • [Presentation] Thermodynamics of black branes as interacting branes2016

    • Author(s)
      Shotaro Shiba
    • Organizer
      East Asian Joint Workshop on Fields and Strings
    • Place of Presentation
      合肥(中華人民共和国)
    • Year and Date
      2016-05-29
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2016-04-21   Modified: 2020-03-30  

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