STUDY ON SELF ORGANIZATION AND COLLECTIVE BEHAVIOR IN DUSTY PLASMA

尘埃等离子体中的自组织和集体行为研究

• 批准号: 12680473
• 负责人: ISHIHARA Osamu
• 金额: $ 1.73万
• 依托单位: YOKOHAMA NATIONAL UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-12680473/
• 关键词: Dusty plasma; Complex plasma; Collective behavior; Self organization; Wake potential; Cluster; Coulomb crystal; 双極子; ウェイク; Dusty plasma; Complex plasma; Collective behavior; Self organization; Wake potential; Cluster; Coulomb crystal; 双極子; ウェイク

A complex plasma is a plasma in which dust particulates of micron size are embedded. Dust particulates are negatively charged and strongly coupled, while plasma particles are weakly coupled. Collective behavior of a complex plasma has been studied analytically as well as computationally. Analytical study revealed the effect of dipole moment on the wake potential of a dust particulate placed in the ion flow. The magnetic field effect on dust particulates has been studied and the rotation of a dust particulate and a dust cluster is analyzed. Simulation revealed the formation of clustering of dust particulates confined in an electrostatic field.

复杂的等离子体是一个血浆，其中微米尺寸的灰尘颗粒嵌入。灰尘颗粒带负电荷并强烈耦合，而血浆颗粒则弱耦合。复杂等离子体的集体行为已在分析和计算上进行了研究。分析研究揭示了偶极矩对放置在离子流中的灰尘的唤醒电位的影响。已经研究了对灰尘颗粒的磁场效应，并分析了粉尘颗粒的旋转和灰尘簇的旋转。模拟显示出局部静电场中的灰尘颗粒的聚类的形成。