Analysis of classical solutions based on numerical approaches in superstring field theory

• Project/Area Number: 25800134
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Niigata University
• Principal Investigator: Kishimoto Isao 新潟大学, 人文社会・教育科学系, 准教授 (60399433)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2015: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
• Keywords: 超開弦の場の理論 / レベル切断近似 / 古典解 / Dブレーン / レベルトランケーション近似 / 定数磁場背景 / 超対称ヤン・ミルズ理論 / modified cubic超弦の場の理論 / 新ゲージ対称性 / 単位弦場に基づく解 / ゲージ不変量 / 多重ブレーン解 / 超弦の場の理論 / マージナル解 / タキオン真空

Outline of Final Research Achievements

We have investigated some physical properties of the identity-based classical solutions in bosonic and super string field theory, numerically and analytically.
Using Erler-Maccaferri's method, we have constructed new classical solutions in bosonic string field theory.
In the modified cubic open superstring field theory, we have proposed a new method for numerical calculations in the level truncation. In the WZW-like open superstring field theory, we have performed the component field expansion, up to the lowest level, including the fermion sector in the ten dimensional space-time.

Research Products

• [Journal Article] String field theory solution corresponding to constant background magnetic field (2017)
  • Author(s): Nobuyuki Ishibashi, Isao Kishimoto, Tomohiko Takahashi
  • Journal Title: Progress of Theoretical and Experimental Physics Volume: 2017 (1): 013B06 Issue: 1 Pages: 1-23
  • DOI: 10.1093/ptep/ptw185
  • NAID: 120007134950
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Open String Fields as Matrices (2015)
  • Author(s): Isao Kishimoto, Toru Masuda, Tomohiko Takahashi, Shoko Takemoto
  • Journal Title: Progress of Theoretical and Experimental Physics Volume: 033B05 Issue: 3 Pages: 1-8
  • DOI: 10.1093/ptep/ptv023
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Comments on observables for identity-based marginal solutions in Berkovits’ superstring field theory (2014)
  • Author(s): Isao Kishimoto, Tomohiko Takahashi
  • Journal Title: Journal of High Energy Physics Volume: 07 Issue: 7 Pages: 031-031
  • DOI: 10.1007/jhep07(2014)031
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Observables for identity-based tachyon vacuum solutions (2014)
  • Author(s): Isao Kishimoto, Toru Masuda, Tomohiko Takahashi
  • Journal Title: Progress of Theoretical and Experimental Physics Volume: 103B02 Issue: 10 Pages: 1-15
  • DOI: 10.1093/ptep/ptu136
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Numerical Solutions of Open String Field Theory in Marginally Deformed Backgrounds (2013)
  • Author(s): Isao Kishimoto, Tomohiko Takahashi
  • Journal Title: Progress of Theor. Exp. Phys. Volume: 093B06 Issue: 9 Pages: 1-21
  • DOI: 10.1093/ptep/ptt072
  • Peer Reviewed
• [Journal Article] Gauge invariant overlaps for identity-based marginal solutions (2013)
  • Author(s): Isao Kishimoto, Tomohiko Takahashi
  • Journal Title: Progress of Theor. Exp. Phys. Volume: 093B07 Issue: 9 Pages: 1-9
  • DOI: 10.1093/ptep/ptt073
  • Peer Reviewed
• [Presentation] Super Yang-Mills theory from KO's open superstring field theory (2017)
  • Author(s): Isao Kishimoto
  • Organizer: Progress in Quantum Field Theory and String Theory II
  • Place of Presentation: 大阪市立大学(大阪府,大阪市)
  • Int'l Joint Research
• [Presentation] Modified cubic超弦の場の理論におけるレベル切断法について (2016)
  • Author(s): 岸本功
  • Organizer: 日本物理学会第71回年次大会
  • Place of Presentation: 東北学院大学泉キャンパス(宮城県仙台市）
  • Year and Date: 2016-03-20
• [Presentation] On a level truncation method in modified cubic superstring field theory (2016)
  • Author(s): Isao Kishimoto
  • Organizer: VIII Workshop on String Field Theory and related aspects
  • Place of Presentation: ICTP SAIFR, Sao Paulo (Brazil)
  • Int'l Joint Research
• [Presentation] 多重ブレーン解とChan-Paton因子について (2015)
  • Author(s): 岸本功，増田暢，高橋智彦，竹本祥子
  • Organizer: 日本物理学会第70回年次大会
  • Place of Presentation: 早稲田大学早稲田キャンパス
  • Year and Date: 2015-03-23
• [Presentation] 超弦の場の理論における古典解と数値解析 (2015)
  • Author(s): 岸本功
  • Organizer: 弦の場の理論15 奈良
  • Place of Presentation: 奈良女子大学
  • Year and Date: 2015-03-06
• [Presentation] 単位弦場に基づくタキオン真空解の物理量 (2014)
  • Author(s): 岸本功，高橋智彦，増田暢
  • Organizer: 日本物理学会2014年秋季大会
  • Place of Presentation: 佐賀大学本庄キャンパス
  • Year and Date: 2014-09-18
• [Presentation] On gauge invariant observables for identity-based marginal solutions in bosonic and super string field theory (2014)
  • Author(s): Isao Kishimoto
  • Organizer: String Field Theory and Related Aspects VI, SFT2014
  • Place of Presentation: SISSA, Trieste (Italy)
  • Year and Date: 2014-07-31
• [Presentation] マージナル変形された背景上での弦の場の理論のゲージ不変量の数値解析
  • Author(s): 岸本功
  • Organizer: 基研研究会「場の理論と弦理論」
  • Place of Presentation: 京都大学基礎物理学研究所
• [Presentation] マージナル変形された背景上でのオーバーラップの解析
  • Author(s): 岸本功，高橋智彦
  • Organizer: 日本物理学会2013年秋季大会
  • Place of Presentation: 高知大学朝倉キャンパス
• [Presentation] 単位超弦場に基づくマージナル変形解のオーバーラップ
  • Author(s): 岸本功，高橋智彦
  • Organizer: 日本物理学会第69回年次大会
  • Place of Presentation: 東海大学湘南キャンパス