Critical Fluctuations in Strongly Coupled Fine Particle Plasmas and Application to Reactive Fields

强耦合细粒子等离子体的临界涨落及其在反应场中的应用

• 批准号: 21540512
• 负责人: TOTSUJI Hiroo
• 金额: $ 2.83万
• 依托单位: Okayama University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21540512/
• 关键词: 微粒子プラズマ; 強結合プラズマ; 臨界点; 密度揺動; 理論・シミュレーション; 強結合微粒子プラズマ; 密度揺動の増大; 3次元構造因子の復元; 非一様系の解析; 軸対称系の構造形成; 荷電粒子系の臨界現象; 構造因子; 2次元・3次元間の変換公式; 溶液の理論; 臨界現象; 臨界揺動; 微小重力実験

The isothermal compressibility of strongly coupled charged particle systems diverges within the one-component plasma model. Previously, the PI of this project pointed out the possibility of its observation as the critical phenomena around the critical point in strongly coupled fine particle plasmas. In this project, the theory has been extended and the conditions for critical density fluctuations have been evaluated in a wide parameter domain and the data obtained in microgravity experiments on the ISS have been analyzed. Another possible origin of critical point in fine particle plasmas has also been shown and the relation to the above mentioned critical point is clarified. For planned experiments on the ground and on ISS, fine particle plasmas in cylindrical discharge tube are analyzed by theory and numerical simulations.

强耦合带电粒子系统的等温可压缩性在单组分等离子体模型中是发散的。在此之前，该项目的PI指出了它作为强耦合细粒子等离子体中临界点附近的临界现象的观测的可能性。在该项目中，对该理论进行了扩展，在广泛的参数范围内对临界密度波动的条件进行了评价，并对国际空间站微重力实验中获得的数据进行了分析。还指出了细粒子等离子体临界点的另一种可能来源，并阐明了与上述临界点的关系。针对地面实验和国际空间站实验，对圆柱形放电管中的细粒子等离子体进行了理论分析和数值模拟。

项目成果

Structures and Dynamics of Fine Particle (Dusty) Plasmas with Cylindrical Symmetry : Theory and Simulations

具有圆柱对称性的细颗粒（尘埃）等离子体的结构和动力学：理论与模拟

• 发表时间: 2011
• 作者: Kenta Shikii;Mieko Toida;門信一郎;加道雅孝;H.Totsuji
• 通讯作者: H.Totsuji

Restoration of Three-Dimensional Correlation Function and Structure Factor from Two-Dimensional Observations of Sliced Volume

从切片体积的二维观测恢复三维相关函数和结构因子

• 发表时间: 2010
• 期刊: Journal of the Physical Society of Japan 79(印刷中)
• 作者: 久保田潤平;上野昌史;田島祐輝;関根航;石原修;H.Totsuji
• 通讯作者: H.Totsuji

Possible Observation of Critical Phenomena in Fine Particle (Dusty) Plasmas

细颗粒（尘埃）等离子体中临界现象的可能观测

• 发表时间: 2009
• 作者: Y. Tomita;T. Yamada;O. Ishihara;H.Totsuji
• 通讯作者: H.Totsuji

On estimation of three-dimensional pair distribution function from two-dimensional sliced data

二维切片数据估计三维对分布函数

• 发表时间: 2009
• 期刊: Journal of the Physical Society of Japan 78,6
• 作者: A. Seto;T. Kamimura;Y. Saitou;Y. Nakamura;O. Ishihara;Y.Ono;H. Totsuji;H. Totsuji
• 通讯作者: H. Totsuji

Thermodynamic instahility and critical point of fine particle(dusty)plasmas : Enhancement of density fluctuations and experimental conditions for observation

细颗粒（尘埃）等离子体的热力学不稳定性和临界点：密度波动的增强和观察的实验条件

• 发表时间: 2009
• 期刊: Journal of Physics A : Mathematical and Theoretical Vol.42
• 作者: T. Shikama;S. Kado;K. Kurihara;and Y. Kuwahara;井上雅彦;加道雅孝;H.Totsuji
• 通讯作者: H.Totsuji