Fluctuations of Bose-Einstein condensate

被引：86
作者：
Gajda, M
Rzazewski, K
机构：
[1] POLISH ACAD SCI,CTR THEORET PHYS,PL-02668 WARSAW,POLAND
[2] COLL SCI,PL-02668 WARSAW,POLAND
来源：
PHYSICAL REVIEW LETTERS | 1997年 / 78卷 / 14期
关键词：
D O I：
10.1103/PhysRevLett.78.2686
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study the groundstate occupation number and its fluctuations fur the Bose-Einstein condensate of trapped atoms using the microcanonical ensemble. The analytic formulas are obtained with the help of the saddle point method. We show that microcanonical fluctuations below the critical temperature tend to zero and scale with the number of particles as 1/root N.
引用
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页码：2686 / 2689
页数：4
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