Calculation of thermodynamic properties of finite Bose-Einstein systems

被引：48

作者：

Borrmann, P ^{[1
]}

Harting, J ^{[1
]}

Mülken, O ^{[1
]}

Hilf, ER ^{[1
]}

机构：

[1] Carl von Ossietzky Univ Oldenburg, Dept Phys, D-26111 Oldenburg, Germany

来源：

PHYSICAL REVIEW A | 1999年 / 60卷 / 02期

关键词：

D O I：

10.1103/PhysRevA.60.1519

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We derive an exact recursion formula for the calculation of thermodynamic functions of finite systems obeying Bose-Einstein statistics. The formula is applicable for canonical systems where the particles can be treated as noninteracting in some approximation, e.g., like Bose-Einstein condensates in magnetic traps. The numerical effort of our computation scheme grows only linearly with the number of particles. As an example, we calculate the relative ground-state fluctuations and specific heats for ideal Bose gases with a finite number of particles enclosed in containers of different shapes. [S1050-2947(99)04203-1].

引用

页码：1519 / 1522

页数：4

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