Totsuji Hiroo, Sanusi Liman M, Totsuji Chieko, Tsuruta Kenji
Department of Electrical and Electronic Engineering, Faculty of Engineering, Okayama University, Tsushimanaka 3-1-1,Okayama 700-8530, Japan.
Phys Rev E Stat Nonlin Soft Matter Phys. 2004;70(1 Pt 2):016405. doi: 10.1103/PhysRevE.70.016405. Epub 2004 Jul 29.
Thermodynamic quantities of a two-dimensional Yukawa system, a model for various systems including single-layered dust particles observed in dusty plasmas, are obtained and expressed by simple interpolation formulas. In the domain of weak coupling, the analytical method based on the cluster expansion is applied and, in the domain of intermediate and strong coupling, numerical simulations are performed. Due to reduced dimensionality, the treatment based on the mean field fails at the short range and exact behavior of the binary correlation is to be taken into account even in the case of weak coupling.
二维 Yukawa 系统的热力学量是通过简单的插值公式得到并表示的，该系统是包括在尘埃等离子体中观测到的单层尘埃颗粒在内的各种系统的模型。在弱耦合区域，应用基于团簇展开的解析方法，在中等耦合和强耦合区域进行数值模拟。由于维度降低，基于平均场的处理在短程失效，即使在弱耦合情况下，也需要考虑二元关联的精确行为。
