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

Search for Vacuum Polarization using High Power Laser and XFEL

Research Project

Project/Area Number 17H02879
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Particle/Nuclear/Cosmic ray/Astro physics
Research InstitutionHigh Energy Accelerator Research Organization

Principal Investigator

Yamazaki Takayuki  大学共同利用機関法人高エネルギー加速器研究機構, 物質構造科学研究所, 助教 (40632360)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥18,980,000 (Direct Cost: ¥14,600,000、Indirect Cost: ¥4,380,000)
Fiscal Year 2019: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2018: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2017: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
Keywords素粒子実験 / X線 / 高性能レーザー
Outline of Final Research Achievements

The vacuum was excited by an intense electromagnetic field of 5e18 W/cm2 (equivalent to a magnetic field of 15,000 T) generated by focusing a high intensity laser (0.6 TW) synchronized with the SACLA XFEL to about 2 μm, and macroscopic refractive index changes were explored using the XFEL as a probe. During the 2019 beamtime, the intense laser was focused near the diffraction limit using wavefront-compensating optics, and the XFEL was focused using a Si beam shaper to suppress the increase in angular divergence. We performed a prototype experiment and obtained the world's first result of vacuum diffraction experiment that is 18 orders of magnitude closer to the prediction of quantum electrodynamics.

Academic Significance and Societal Importance of the Research Achievements

本研究は、LHC実験におけるヒッグス粒子の発見が単なる新粒子の発見ではなく真空の内部に潜むスカラー場を初めて実証したものであることに着目し、高強度電磁場によって真空を励起することにより真空内部を探るものである。同様の実験は従来、磁石を用いて行われてきたが、本研究では近年発達が目覚ましい大強度レーザーを用いるこで磁石よりはるかに協力な電磁場を発生させ、それと同期する高輝度X線自由電子レーザー(XFEL)という小さな構造を探るのに適したプローブを用いる全く新たな実験手法を確立した。これは今後SACLAの500TWレーザーや世界の大強度レーザー施設における同種の実験への先鞭をつける成果である。

Report

(4 results)
  • 2020 Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (9 results)

All 2020 2019 2018 2017

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

  • [Journal Article] New Estimation of the Curvature Effect for the X-ray Vacuum Diffraction Induced by an Intense Laser Field2020

    • Author(s)
      Y. Seino, T. Inada. T. Yamazaki, T. Namba, S. Asai
    • Journal Title

      Progress of Theoretical and Experimental Physics

      Volume: - Issue: 7

    • DOI

      10.1093/ptep/ptaa084

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Probing Physics in Vacuum Using an X-ray Free-Electron Laser, a High-Power Laser, and a High-Field Magnet2017

    • Author(s)
      T. Inada, T. Yamazaki, T. Yamaji, Y. Seino, X. Fan, S. Kamioka, T. Namba, S. Asai
    • Journal Title

      Applied Sciences

      Volume: 7 Issue: 7 Pages: 671-682

    • DOI

      10.3390/app7070671

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] XFELの高輝度性を利用した真空の探索2017

    • Author(s)
      山崎 高幸,清野 結大,稲田 聡明,難波 俊雄,浅井 祥仁
    • Journal Title

      レーザー研究

      Volume: 45 Pages: 488-492

    • NAID

      130007957420

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Presentation] X線自由電子レーザー施設SACLAにおける 高強度レーザーを用いた真空回折の探索2020

    • Author(s)
      清野結大,山崎高幸,稲田聡明,難波俊雄,浅井祥仁,籔内俊毅,富樫格,犬伏雄一,玉作賢治,井上伊知郎,大坂泰斗,矢橋牧名,石川哲也,川合健太郎
    • Organizer
      日本物理学会第75回年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] X線自由電子レーザー施設SACLAにおける 高強度レーザーを用いた真空回折の探索2019

    • Author(s)
      清野結大,山崎高幸,稲田聡明,難波俊雄,浅井祥仁,籔内俊毅,富樫格,犬伏雄一,玉作賢治,井上伊知郎,大坂泰斗,矢橋牧名,石川哲也,川合健太郎
    • Organizer
      日本物理学会2019年秋季大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] X線自由電子レーザー施設SACLAにおける高強度レーザーを用いた真空回折の探索2019

    • Author(s)
      清野結大,山崎高幸,稲田聡明,難波俊雄,浅井祥仁,籔内俊毅,富樫格,犬伏雄一,玉作賢治,井上伊知郎,大坂泰斗,矢橋牧名,石川哲也,川合健太郎
    • Organizer
      日本物理学会第 74 回年次大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] X線自由電子レーザー施設SACLAにおける高強度レーザーを用いた真空回折の探索2018

    • Author(s)
      清野結大,山崎高幸,稲田聡明,難波俊雄,浅井祥仁,籔内俊毅,富樫格,犬伏雄一,玉作賢治,井上伊知郎,大坂泰斗,矢橋牧名,石川哲也,川合健太郎
    • Organizer
      日本物理学会 2018 年秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Search for Vacuum Diffraction Using high power laser and X-ray Free Electron Laser SACLA2017

    • Author(s)
      Y. Seino,T. Yamazaki,T. Inada,T. Namba,S. Asai,T. Yabuuchi,T. Togashi,Y. Inubushi,K. Tamasaku,M. Yabashi,T. Ishikawa
    • Organizer
      Light driven Nuclear-Particle physics and Cosmology 2017 (LNPC’17)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] X線自由電子レーザー施設SACLAにおける 高強度レーザーを用いた真空回折の探索2017

    • Author(s)
      清野結大,山崎高幸,稲田聡明,難波俊雄,浅井祥仁, 籔内俊毅,富樫格,犬伏雄一, 玉作賢治,井上伊知朗, 大坂泰斗,矢橋牧名,石川哲也
    • Organizer
      日本物理学会2017年秋季大会
    • Related Report
      2017 Annual Research Report

URL: 

Published: 2017-04-28   Modified: 2022-01-27  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi