Discovery of dark-state superradiance and validation of acceleration mechanism
| Project/Area Number |
21340056
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | Kyoto University |
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Principal Investigator |
NANJO Hajime 京都大学, 大学院・理学研究科, 助教 (40419445)
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| 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)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥15,990,000 (Direct Cost: ¥12,300,000、Indirect Cost: ¥3,690,000)
Fiscal Year 2011: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2010: ¥10,140,000 (Direct Cost: ¥7,800,000、Indirect Cost: ¥2,340,000)
Fiscal Year 2009: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
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| Keywords | 素粒子 / 超放射 / マクロコヒーランス / レーザー / 暗黒共鳴 / 原子ニュートリノ |
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| 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.
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Report
(4 results)
Research Products
(8 results)
