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Non-perturbative study of supersymmetric gauge theories via discretization and numerical computation

Research Project

Project/Area Number 15K05060
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionKeio University

Principal Investigator

MATSUURA So  慶應義塾大学, 商学部(日吉), 教授 (70392123)

Research Collaborator SUGINO Fumihiko  
HANADA Masanori  
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 2018: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords超対称性 / 数値計算 / 格子ゲージ理論 / アノマリー / 局所化
Outline of Final Research Achievements

From recent research on string theory, supersymmetric gauge theory has been thought to be a key to approach the quantum gravity. In our project, we aimed to establish a method to calculate four-dimensional supersymmetric gauge theory from the first principle by combining two-dimensional lattice theory and matrix regularization.
In this project, we have defined the supersymmetric gauge theory on discretized Riemann surfaces and investigated their characteristics. As a result, we obtained many findings including the relationship between the quantum anomaly in two-dimensional theory and numerical calculation. This is an essential achievement when considering quantum gravity through numerical calculation in the future.

Academic Significance and Societal Importance of the Research Achievements

現在、物質の基本的な構成要素である「素粒子」は、その相互作用まで含めて場の量子論と呼ばれる理論体系で記述される。一方、アインシュタインは重力の本質が時空と物質の相互作用にある事を明らかにしたが、その記述方法は古典力学的であり、場の量子論とは本質的に相容れない。我々の宇宙の根本原理を明らかにするためには、重力と量子がどのような形で融合するかを知る必要があるが、超弦理論が予言する「ゲージ重力対応」はそのための有力なアプローチ方法である。本研究によって、超対称ゲージ理論の数値計算を実行するための知見が多く得られた。これは、重力の量子論的な特性を調査するための重要なステップである。

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

    (12 results)

All 2019 2018 2017 2016 2015

All Journal Article (7 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results,  Open Access: 6 results,  Acknowledgement Compliant: 4 results) Presentation (5 results) (of which Int'l Joint Research: 3 results,  Invited: 2 results)

  • [Journal Article] Commutative Geometry for Non-commutative D-branes by Tachyon Condensation2018

    • Author(s)
      T. Asakawa, G. Ishiki, T. Matsumoto, S. Matsuura and H. Muraki
    • Journal Title

      Progress of Theoretical and Experimental Physics

      Volume: no. 6 Issue: 6

    • DOI

      10.1093/ptep/pty062

    • NAID

      120007133451

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Spherical D-brane by Tachyon Condensation2018

    • Author(s)
      Tsuguhiko Asakawa, So Matsuura
    • Journal Title

      Progress of Theoretical and Experimental Physics

      Volume: 2018 Issue: 3

    • DOI

      10.1093/ptep/pty006

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] O(a) Improvement of 2D N=(2,2) Lattice SYM Theory2018

    • Author(s)
      Masanori Hanada, Daisuke Kadoh, So Matsuura, Fumihiko Sugino
    • Journal Title

      Nuclear Physics B

      Volume: B929 Pages: 266-297

    • DOI

      10.1016/j.nuclphysb.2018.02.008

    • NAID

      120006463753

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Anomaly and sign problem in N=(2,2) SYM on polyhedra: Numerical analysis2016

    • Author(s)
      Sho Kamata, So Matsuura, Tatsuhiro Misumi, Kazutoshi Ohta
    • Journal Title

      Progress of Theoretical and Experimental Physics

      Volume: 16 Issue: 12 Pages: 123B01-123B01

    • DOI

      10.1093/ptep/ptw153

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Numerical Analysis of Discretized N=(2,2) SYM on Polyhedra2016

    • Author(s)
      Sho Kamata, So Matsuura, Tatsuhiro Misumi, Kazutoshi Ohta
    • Journal Title

      Proceedings, 34th International Symposium on Lattice Field Theory (Lattice 2016)

      Volume: 2016 Pages: 210-210

    • Related Report
      2016 Research-status Report
    • Acknowledgement Compliant
  • [Journal Article] A one-loop test for construction of 4D N = 4 SYM from 2D SYM via fuzzy-sphere geometry2016

    • Author(s)
      So Matsuura, Fumihiko Sugino
    • Journal Title

      Progress of Theoretical and Experimental Physics

      Volume: 043 Issue: 4 Pages: 043B01-043B01

    • DOI

      10.1093/ptep/ptw014

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Ising model on a twisted lattice with holographic renormalization-group flow2015

    • Author(s)
      So Matsuura, Norisuke Sakai
    • Journal Title

      Progress of Theoretical and Experimental Physics

      Volume: 113 Issue: 11 Pages: 113B02-113B02

    • DOI

      10.1093/ptep/ptv147

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] Supersymmetric Lattice Gauge Theories on Discretized Riemann Surfaces2019

    • Author(s)
      So Matsuura
    • Organizer
      3rd Bangkok Workshop on Discrete Geometry Dynamics and Statistics
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Topological Observables in 2D SUSY Lattice Gauge Theories2017

    • Author(s)
      So Matsuura
    • Organizer
      Discrete Approaches to the Dynamics of Fields and Space-Time
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Topological Operators in 2D N=(2,2) Lattice SYM2017

    • Author(s)
      松浦 壮
    • Organizer
      日本物理学会 秋季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] Numerical Analysis of Discretized N=(2,2) SYM on Polyhedra2016

    • Author(s)
      Syo Kamata
    • Organizer
      The 34th International Symposium on Lattice Field Theory (Lattice 2016)
    • Place of Presentation
      University of Southampton, Southampton, United Kingdom
    • Year and Date
      2016-07-24
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Analysis of 2dim. N=(2,2) super Yang-Mills theory on curved spacetime using lattice gauge theory2016

    • Author(s)
      太田和俊, 鎌田翔, 松浦壮, 三角樹弘
    • Organizer
      日本物理学会 第71回年次大会
    • Place of Presentation
      東北学院大学(宮城県 仙台市)
    • Year and Date
      2016-03-22
    • Related Report
      2015 Research-status Report

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Published: 2015-04-16   Modified: 2020-03-30  

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