A pilot search for a source of Dark Energy in laboratory

2014 Fiscal Year Final Research Report

• Project/Area Number: 24654069
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: Hiroshima University
• Principal Investigator: HOMMA Kensuke 広島大学, 理学(系)研究科(研究院), 助教 (40304399)
• 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)
• Project Period (FY): 2012-04-01 – 2015-03-31
• 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

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.

Free Research Field

素粒子・原子核・レーザー実験