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2011 Fiscal Year Final Research Report

Discovery of dark-state superradiance and validation of acceleration mechanism

Research Project

  • PDF
Project/Area Number 21340056
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 InstitutionKyoto University

Principal Investigator

NANJO Hajime  京都大学, 大学院・理学研究科, 助教 (40419445)

Co-Investigator(Kenkyū-buntansha) SASAO Noboru  岡山大学, 教育研究プログラム戦略本部極限量子研究コア, 教授 (10115850)
Project Period (FY) 2009 – 2011
Keywords素粒子
Research Abstract

I proposed a new phenomena,"Dark-State Superradiance", which was a superradiance from the dark state. The radiation strength from the superradiance is proportional to the square of the number of atoms with a delay time in developing the coherence between the group of atoms. On the other hand, the darkstate superradiance was expected to have no delay time due to the original coherence between the two states in the atoms. For the discovery of the dark-state superradiance, the barium target and lasers were prepared. A transition with superradiance to utilize the coherence of the two states was succeeded, which was the step to realize the darkstate superradiance.

  • Research Products

    (4 results)

All 2012 2011 2010 2009

All Presentation (4 results)

  • [Presentation] バリウム原子準安定状態を用いた対超放射探索実験2012

    • Author(s)
      大饗千彰、笹尾登、南條創, 他
    • Organizer
      日本物理学会第67回年次大会
    • Place of Presentation
      関西学院大学西宮上ケ原キャンパス
    • Year and Date
      2012-03-27
  • [Presentation] マクロコヒーランス増幅機構を用いたニュートリノ質量分光(.) Ba対超放射探索実験2011

    • Author(s)
      大饗千彰、笹尾登、南條創, 他
    • Organizer
      日本物理学会2011年秋期大会
    • Place of Presentation
      弘前大学文京町キャンパス
    • Year and Date
      2011-09-18
  • [Presentation] マクロコヒーランス増幅機構を用いたニュートリノ質量分光(IX)-超放射を用いたバリウム準安定状態の生成実験2010

    • Author(s)
      大饗千彰、笹尾登、南條創, 他
    • Organizer
      日本物理学会第65回年次大会
    • Place of Presentation
      岡山大学津島キャンパス
    • Year and Date
      2010-03-23
  • [Presentation] マクロコヒーランス増幅機構を用いたニュートリノ質量分光(VII)-ラマン超放射を用いたバリウム準安定状態の生成2009

    • Author(s)
      大饗千彰、笹尾登、南條創, 他
    • Organizer
      日本物理学会2009年秋期大会
    • Place of Presentation
      甲南大学岡本キャンパス
    • Year and Date
      2009-09-10

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Published: 2013-07-31  

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