Two-gas description of dilute Bose-Einstein condensates at finite temperature

被引：8

作者：

Dodd, PJ ^{[1
]}

Edwards, M

Clark, CW

机构：

[1] Univ Maryland, Inst Phys Sci & Technol, College Pk, MD 20742 USA

[2] Georgia So Univ, Dept Phys, Statesboro, GA 30460 USA

[3] Natl Inst Stand & Technol, Div Electron & Opt Phys, Phys Lab, Technol Adm,US Dept Commerce, Gaithersburg, MD 20899 USA

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1999年 / 32卷 / 16期

关键词：

D O I：

10.1088/0953-4075/32/16/310

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We show that recent treatments of magnetically trapped Bose-Einstein condensates (BECs) at temperature T > 0 fit a simple picture: the condensate wavefunction is that of a T = 0 BEC with the appropriate (depleted) number of condensate atoms N-0, and the surrounding thermal cloud is described by the statistical mechanics of an ideal gas in the combined potentials of the magnetic trap and the cloud-condensate interaction. Even a simple classical description of the cloud reproduces its essential outline, and facilitates easy approximate calculations of BEC properties for T > 0.

引用

页码：4107 / 4115

页数：9

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