理想量子气体的尺度效应  

Finite-size effects in ideal quantum gas

作　　者：苏国珍[1] 陈金灿[1] 

机构地区：[1]厦门大学物理学系,福建厦门361005

出　　处：《大学物理》2010年第2期1-2,8,共3页College Physics

摘　　要：根据欧拉-麦克劳林(Euler-MacLaurin)公式,导出有限理想量子气体的热力学量表达式,揭示系统尺度和边界形状对其性质的影响.结果表明,有限尺度效应导致了一系列与热力学极限条件下不同的性质特征,如系统的非广延性和压强的各向异性等.Based on the Euler-MacLaurin formula, the expressions of thermodynamic quantities of a finite-size ideal quantum gas are derived and the effects of the size of the system and the shape of the boundary are revealed. It is shown that the finite-size effects result in several novel characteristics such as the non-extensively of the system, the anisotropy of the pressure, and so on, which are different from those obtained under the thermodynamic limit condition.

关 键 词：理想量子气体 有限尺度效应 热力学性质 

分 类 号：O414.2[理学—理论物理]