Innovative research on strongly coupled plasma physics by using AC trapped large number of charged particles

2014 Fiscal Year Final Research Report

• Project/Area Number: 24540536
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Plasma science
• Research Institution: Nagoya University
• Principal Investigator: SHOJI TATSUO 名古屋大学, 工学(系)研究科(研究院), 准教授 (50115581)
• Co-Investigator(Kenkyū-buntansha): ARIMOTO Hideki 名古屋大学, 大学院工学研究科, 助教 (80242882)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: ACトラップ / クーロン多体相互作用 / 帯電微粒子 / カオス / 非線形 / 強結合プラズマ / 揺動

Outline of Final Research Achievements

AC trap of charged particles (few tens of thousands, few tens of micron in diameter) is developed to investigate collective phenomena, structure and fluctuation of particles, which are related to the phenomena predicted to be occurred in a crust of neutron star and, solid and liquid plasmas, and physics of large dimensional chaos. Main results are; (1)phonon mode in one component strongly coupled plasma was obtained. (2)Separation of particle structure to ordered and fluctuation ( melted) regions was observed in AC frequency and voltage phase space. Power spectrum of long time density fluctuation (1/f) was observed. (3) Large deviation statistic of particle velocities are observed.

Free Research Field

プラズマ物理