二维少体绝热塞子系统在位形空间的统计行为  

Analytical solution of space probability distributions of two-dimensional few-body adiabatic piston system

作　　者：李海红[1] 

机构地区：[1]北京师范大学物理系,北京100875

出　　处：《曲靖师范学院学报》2003年第6期4-7,共4页Journal of Qujing Normal University

摘　　要：从理论上讨论了在二维少体刚性圆盘系统中 ,“绝热塞子”在位形空间中的统计分布 ,发现了一个很有趣的反直觉的“双峰”分布现象 ,之后对这样一个系统进行了数值模拟 ,得到的模拟结果与理论结果非常一致 .Spatial probability distributions of few-body 'adiabatic piston' system in two-dimensional box are analytically computed in statistical equilibrium states, and explicit solutions of the probability distributions are obtained. Some nontrivial interesting features of the probability distributions are predicted, and fully confirmed by numerical simulations. And the realization of micro-canonical equilibrium state of the system is justified by the agreement between the theoretical predictions and numerical observations.

关 键 词：位形空间 二维 统计分布 数值模拟 发现 系统 圆盘 统计行为 理论 绝热 

分 类 号：C829[社会学—统计学] O413[理学—理论物理]