| Project/Area Number |
24654069
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Particle/Nuclear/Cosmic ray/Astro physics
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| Research Institution | Hiroshima University |
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Principal Investigator |
HOMMA Kensuke 広島大学, 理学(系)研究科(研究院), 助教 (40304399)
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| Co-Investigator(Renkei-kenkyūsha) |
TOYOKAWA Hiroyuki 独立行政法人産業技術総合研究所, 計測フロンティア研究部門, グループリーダー (80357582)
KURODA Ryunosuke 独立行政法人産業技術総合研究所, 計測フロンティア研究部門, 研究員 (70350428)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2012: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 暗黒エネルギー源 / スカラー場 / レーザー / 真空内四光波混合 / 暗黒エネルギー / 暗黒物質 / 四光波混合 / 真空 |
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| Outline of Final Research Achievements |
We have developed the new method, four-wave mixing in the vacuum, to search for a low-mass scalar field weakly coupling to photons which can be a reasonable candidate for Dark Energy. Based on the pilot search by utilizing this method, we evaluated the upper limit on the mass-coupling relation on unknown scalar fields. Although the laser field strength is still weak, we have succeeded to publish the result of the pilot search for the first time.
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