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Analysis of quiver gauge theory via graph theory and search for a novel space-time picture

Research Project

Project/Area Number 17K05422
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 InstitutionMeiji Gakuin University

Principal Investigator

Ohta Kazutoshi  明治学院大学, 法学部, 教授 (80442937)

Project Period (FY) 2017-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2019: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2018: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords超対称ゲージ理論 / 箙ゲージ理論 / グラフ理論 / 局所化定理 / 格子ゲージ理論 / クイバーゲージ理論 / ヴォーテックス / モジュライ空間 / 局所化 / BPS方程式 / 数値計算 / 対称ゲージ理論 / 離散空間上の場の理論 / ゼロモード / アノマリー / 素粒子論 / 超弦理論
Outline of Final Research Achievements

We analyze quiver gauge theories defined on directed graphs using graph theory. In particular, for two-dimensional supersymmetric gauge theory, the partition function is exactly evaluated by the localization method, and new knowledges about the moduli space of the vortices in the quiver gauge theory are obtained. We also consider supersymmetric theory on the discretized space-time divided by the two-dimensional Riemann surface, which can be regarded as a kind of the quiver gauge theory. Using graph theory, we clarify the construction of the quiver gauge theory and topological properties such as the zero mode contribution to the anomalies, including the relation to the continuum theory.

Academic Significance and Societal Importance of the Research Achievements

頂点同士を向きを持った矢印で結ぶ有向グラフによって箙ゲージ理論と呼ばれるタイプのゲージ理論を定義できる。一方、有向グラフ含むグラフ一般を扱う数学の道具としてグラフ理論がある。箙ゲージ理論がグラフを用いて定義される以上、グラフ理論を用いた解析を行うことができるものと期待されるが、これまで箙ゲージ理論に対してグラフ理論を積極的に活用することはあまり行われてこなかった。本研究は、物理的な解釈や連続理論との関係を含め、箙ゲージ理論の構成と解析においてグラフ理論が非常に有効であることを示すものである。

Report

(6 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (4 results)

All 2022 2021 2019 2017

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

  • [Journal Article] Supersymmetric gauge theory on the graph2022

    • Author(s)
      Matsuura So、Ohta Kazutoshi
    • Journal Title

      Progress of Theoretical and Experimental Physics

      Volume: 2022 Issue: 4

    • DOI

      10.1093/ptep/ptac018

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The volume of the quiver vortex moduli space2021

    • Author(s)
      Kazutoshi Ohta and Norisuke Sakai
    • Journal Title

      Prog. Theor. Exp. Phys.

      Volume: 2021 Issue: 3

    • DOI

      10.1093/ptep/ptab012

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Higgs and Coulomb branch descriptions of the volume of the vortex moduli space2019

    • Author(s)
      Kazutoshi Ohta and Norisuke Sakai
    • Journal Title

      Progress of Theoretical and Experimental Physics

      Volume: 2019 Issue: 4

    • DOI

      10.1093/ptep/ptz016

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Graph theory and Lattice theory2017

    • Author(s)
      Kazutoshi Ohta
    • Organizer
      Discrete Approaches to the Dynamics of Fields and Space-Time, APCTP, Korea
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited

URL: 

Published: 2017-04-28   Modified: 2023-01-30  

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