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Fluid mechanical study of higher dimensional black holes using the blackfold approach

Research Project

Project/Area Number 18K03652
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 15010:Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics
Research InstitutionAkita Prefectural University

Principal Investigator

Miyamoto Umpei  秋田県立大学, 総合科学教育研究センター, 准教授 (70386621)

Project Period (FY) 2018-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2021: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2019: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywordsブラックホール / 高次元時空 / 流体力学 / 不安定性 / 流体・重力対応 / グレゴリー・ラフラーメ不安定性 / 黒様体 / レイリー・プラトー不安定性 / 変分法 / 重力 / 流体 / 一般相対論 / 自己相似解 / 黒様体法 / 高次元ブラックホール / 流体不安定性 / 宇宙検閲官仮説
Outline of Final Research Achievements

High-dimensional black holes play a central role in the construction of a unified theory of elementary particles and higher-dimensional cosmological models. In this study, we have attempted to clarify the properties of higher-dimensional black holes using the correspondence between fluid mechanics and general relativity. As a major result, we clarified the stability and instability of a fluid surrounded by a hyperplane with surface tension, and obtained important implications for black hole physics. He also analyzed quantum effects on black holes and wormholes, and studied the shadows of black holes. In the theory of maximum dimension, the dynamics of a black hole is described as a system of diffusion-type fluid equations, and turbulent phenomena in a black hole are discussed.

Academic Significance and Societal Importance of the Research Achievements

素粒子統一理論や高次元宇宙モデルを構築するにあたり高次元ブラック・ホールは中心的役割を果たす.しかし,一般に高次元重力は4次元のそれよりも強く,自由度も多いため,数値的アプローチをとったとしても解析は困難を伴う.このような困難を流体力学的手法を取り入れることで回避し,非線形な領域における高次元ブラックホールの性質を準解析的に評価した点に学術的意義があると思われる.昨今,理論の成熟と観測技術の向上により相対論研究は再び黄金期に入ったと言われるが,本研究の成果は一般相対論のそのような進歩を支えるものである.

Report

(6 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (18 results)

All 2023 2022 2021 2020 2019 2018

All Journal Article (7 results) (of which Peer Reviewed: 6 results,  Open Access: 2 results) Presentation (9 results) (of which Int'l Joint Research: 4 results,  Invited: 3 results) Book (2 results)

  • [Journal Article] Determining parameters of a spherical black hole with a thin accretion disk by observing its shadow2023

    • Author(s)
      Hioki Kenta、Miyamoto Umpei
    • Journal Title

      Physical Review D

      Volume: 107 Issue: 4 Pages: 1-15

    • DOI

      10.1103/physrevd.107.044042

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Stability of hypersurfaces of constant mean curvature with free boundary in two parallel hyperplanes2023

    • Author(s)
      Koiso Miyuki、Miyamoto Umpei
    • Journal Title

      JSIAM Letters

      Volume: 15 Issue: 0 Pages: 9-12

    • DOI

      10.14495/jsiaml.15.9

    • ISSN
      1883-0609, 1883-0617
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 力学と数学2023

    • Author(s)
      宮本雲平
    • Journal Title

      数理科学

      Volume: 719 Pages: 7-14

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Escape probability of a photon emitted near the black hole horizon2020

    • Author(s)
      Kota Ogasawara, Takahisa Igata, Tomohiro Harada, Umpei Miyamoto
    • Journal Title

      Physical Review D

      Volume: 101 Issue: 4 Pages: 1-11

    • DOI

      10.1103/physrevd.101.044023

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Explosive particle creation by instantaneous change of boundary conditions2019

    • Author(s)
      Miyamoto Umpei
    • Journal Title

      Physical Review D

      Volume: 99 Issue: 2 Pages: 1-20

    • DOI

      10.1103/physrevd.99.025012

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Systematical study of pulsar light curves with special relativistic effects2018

    • Author(s)
      Sotani Hajime、Miyamoto Umpei
    • Journal Title

      Physical Review D

      Volume: 98 Issue: 10 Pages: 1-14

    • DOI

      10.1103/physrevd.98.103019

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Pulse profiles of highly compact pulsars in general relativity2018

    • Author(s)
      Sotani Hajime、Miyamoto Umpei
    • Journal Title

      Physical Review D

      Volume: 98 Issue: 4 Pages: 1-12

    • DOI

      10.1103/physrevd.98.044017

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Presentation] Determining parameters of a Black-Hole Accretion-Disk system by observing the shadow2022

    • Author(s)
      Umpei Miyamoto
    • Organizer
      The 31st Workshop on General Relativity and Gravitation
    • Related Report
      2022 Annual Research Report
  • [Presentation] 2つの互いに平行な超曲面上に自由境界を持つ平均曲率一定超曲面の安定性2021

    • Author(s)
      小磯深幸,宮本雲平
    • Organizer
      日本応用数理学会2021年度年会
    • Related Report
      2021 Research-status Report
  • [Presentation] Dynamical aspects of cylindrical objects in (non-)gravitational physics2019

    • Author(s)
      Umpei Miyamoto
    • Organizer
      General Relativity and Partial Differential Equation
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 平均曲率一定超曲面とブラックストリングの不安定性2019

    • Author(s)
      宮本雲平
    • Organizer
      日本物理学会2019年秋季大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Stability of black strings and liquid bridges2019

    • Author(s)
      Umpei Miyamoto
    • Organizer
      The 29th Workshop on General Relativity and Gravitation in Japan
    • Related Report
      2019 Research-status Report
  • [Presentation] Black hole and fluid: Analogy and duality2018

    • Author(s)
      Umpei Miyamoto
    • Organizer
      Partial Differential Equation and General Relativity
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 高次元における平均曲率一定面とブラックホールの安定性2018

    • Author(s)
      宮本雲平
    • Organizer
      第 20 回「特異点と時空、および関連する物理」研究会
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] Non-linear perturbation of black branes at large D2018

    • Author(s)
      Umpei Miyamoto
    • Organizer
      The 15th Marcel Grossmann Meeting
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Non-linear perturbation of black branes at large D2018

    • Author(s)
      Umpei Miyamoto
    • Organizer
      The 8th International Workshop on Astronomy and Relativistic Astrophysics
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Book] 微分積分とその応用2022

    • Author(s)
      宮本 雲平
    • Total Pages
      259
    • Publisher
      共立出版
    • ISBN
      9784320114807
    • Related Report
      2022 Annual Research Report
  • [Book] 相対論と宇宙の事典2020

    • Author(s)
      安東正樹、白水徹也、浅田秀樹、石橋明浩、小林努、真貝寿明、早田次郎、谷口敬介
    • Total Pages
      432
    • Publisher
      朝倉書店
    • ISBN
      9784254131284
    • Related Report
      2020 Research-status Report 2019 Research-status Report

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Published: 2018-04-23   Modified: 2024-01-30  

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