• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Explosive particle creation by wormhole formation and proposal of experiment using superconducting circuit

Research Project

Project/Area Number 15K05086
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 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)

Research Collaborator Harada Tomohiro  
Kinoshita Shunichiro  
Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsワームホール / 動的カシミール効果 / 粒子生成 / 一般相対論 / 曲がった時空での場の量子論 / 場の量子論 / 相対論 / 超伝導回路 / タイムマシン / 時間順序保護仮説 / 動的カシミア効果
Outline of Final Research Achievements

The space-time structure called a wormhole causes a serious problem such as the breakdown of the causality. Therefore, it is expected that the nature includes a mechanism prohibiting the wormhole formation. However, such a mechanism has not been known so far. In this study, we showed that the wormhole formation is associated with explosive particle creation, and the wormhole formation is unstabilized by its back-reaction using simple models.

Academic Significance and Societal Importance of the Research Achievements

近年の重力波観測やブラックホールの直接撮影に象徴されるように、一般相対論の研究は理論と観測が両輪となって進む精密科学への転換期を迎えている。そのような時期に、ワームホールというエキゾチックでありながら一般相対論において重要な位置を占める対象について、その性質(量子論的不安定性)を明らかにできたことは学術的意義が大きい。また、SFとも揶揄されかねない対象について、信頼できる枠組みで低エネルギー再現実験について論じた本研究は、青少年の科学的興味を刺激し、基礎科学と科学技術の融合を推進するという点で社会的意義も大きいと言える。

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

    (22 results)

All 2019 2018 2017 2016 2015

All Journal Article (12 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 11 results,  Open Access: 3 results,  Acknowledgement Compliant: 4 results) Presentation (10 results) (of which Int'l Joint Research: 4 results,  Invited: 2 results)

  • [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 Annual Research 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 Annual Research 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 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Non-linear perturbation of black branes at large D2017

    • Author(s)
      Umpei Miyamoto
    • Journal Title

      Journal of High Energy Physics

      Volume: 1706 (2017) 033 Issue: 6 Pages: 1-25

    • DOI

      10.1007/jhep06(2017)033

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Sensitivity of pulsar light curves to spacetime geometry and efficacy of analytic approximations2017

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

      Physical Review D

      Volume: 96 (2017) no.10, 104018 Issue: 10 Pages: 1-20

    • DOI

      10.1103/physrevd.96.104018

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Escape probability of the super-Penrose process2017

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

      Physical Review D

      Volume: 95 (2017) no.12, 124019 Issue: 12 Pages: 1-4

    • DOI

      10.1103/physrevd.95.124019

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Escape probability of the super-Penrose process2017

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

      Physical Review D

      Volume: 印刷中

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Vacuum excitation by sudden appearance and disappearance of a Dirichlet wall in a cavity2016

    • Author(s)
      Tomohiro Harada, Shunichiro Kinoshita, Umpei Miyamoto
    • Journal Title

      Physical Review D

      Volume: 94 Issue: 2 Pages: 1-17

    • DOI

      10.1103/physrevd.94.025006

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Consistent analytic approach to the efficiency of collisional Penrose process2016

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

      Physical Review D

      Volume: 94 Issue: 2 Pages: 1-8

    • DOI

      10.1103/physrevd.94.024038

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Vacuum excitation by sudden (dis-)appearance of a Dirichlet wall in a cavity2016

    • Author(s)
      Umpei Miyamoto
    • Journal Title

      Proceedings of The 25th Workshop on General Relativity and Gravitation in Japan

      Volume: 5 Pages: 1296-1300

    • Related Report
      2016 Research-status Report
    • Open Access
  • [Journal Article] High efficiency of collisional Penrose process requires heavy particle production2016

    • Author(s)
      K. Ogasawara, T. Harada, and U. Miyamoto
    • Journal Title

      Physical Review D

      Volume: 93 Issue: 4 Pages: 044054-044054

    • DOI

      10.1103/physrevd.93.044054

    • Related Report
      2015 Research-status Report
    • Peer Reviewed
  • [Journal Article] Strong gravitational lensing by an electrically charged black hole in Eddington-inspired Born-Infeld gravity2015

    • Author(s)
      H. Sotani and U. Miyamoto
    • Journal Title

      Physical Review D

      Volume: 92 Issue: 4 Pages: 044052-044052

    • DOI

      10.1103/physrevd.92.044052

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Black hole and fluid: Analogy and duality2018

    • Author(s)
      Umpei Miyamoto
    • Organizer
      Partial Differential Equation and General Relativity
    • Related Report
      2018 Annual Research 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 Annual Research 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 Annual Research 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 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Large-D 極限におけるブラックブレーンの非線形摂動2017

    • Author(s)
      宮本雲平
    • Organizer
      日本物理学会2017年秋季大会
    • Related Report
      2017 Research-status Report
  • [Presentation] Non-linear perturbation of black branes at large D2017

    • Author(s)
      U. Miyamoto
    • Organizer
      The 27th Workshop on General Relativity and Gravitation in Japan
    • Related Report
      2017 Research-status Report
  • [Presentation] s wormhole formation prohibited by semi-classical effects?2016

    • Author(s)
      Umpei Miyamoto
    • Organizer
      Spanish-Portuguese Relativity Meeting: One Hundred Years of the Schwarzschild Solution
    • Place of Presentation
      Lisbon, Portugal
    • Year and Date
      2016-09-12
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Dirichlet壁の出現・消滅による真空励起2016

    • Author(s)
      宮本雲平
    • Organizer
      日本物理学会第71回年次大会
    • Place of Presentation
      東北学院大学
    • Year and Date
      2016-03-19
    • Related Report
      2015 Research-status Report
  • [Presentation] 急激な境界条件の変化による量子真空の励起2016

    • Author(s)
      宮本雲平
    • Organizer
      日本物理学会2016年秋季大会
    • Place of Presentation
      宮崎大学
    • Related Report
      2016 Research-status Report
  • [Presentation] Vacuum excitation by sudden (dis-)appearance of a Dirichlet wall in a cavity2015

    • Author(s)
      U. Miyamoto
    • Organizer
      The 25th Workshop on General Relativity and Gravitation in Japan
    • Place of Presentation
      Kyoto University
    • Year and Date
      2015-12-07
    • Related Report
      2015 Research-status Report

URL: 

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

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi