Quantitative and qualitative analysis of Bose-Einstein condensation in harmonic traps

被引:0
|
作者
Hu, GX [1 ]
Ye, JP
Dai, XX
Dai, JX
Evenson, WE
机构
[1] Fudan Univ, Dept Phys, Res Grp Quantum Stat & Methods Theoret Phys, Shanghai 200433, Peoples R China
[2] Fudan Univ, Dept Phys, Surface Phys Lab, Shanghai 200433, Peoples R China
[3] Brigham Young Univ, Dept Phys & Astron, Provo, UT 84602 USA
[4] NYU, Dept Chem, New York, NY 10003 USA
关键词
Bose-Einstein condensation; harmonic trap; critical property; analysis;
D O I
暂无
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A simple and direct-approach to handle summation is presented., With this approach, we analytically investigate Bose-Einstein condensation of ideal Bose gas trapped in an isotropic harmonic oscillator potential. We get the accurate expression of T. which is very close to (0.43% larger than) the experimental data. We find the curve of internal energy of the system vs. temperature has a turning point which marks the beginning of a condensation. We also find that there exists specific heat jump at the transition temperature, no matter whether the system is macroscopi. c or finite. This phenomenon could be a manifestation of a phase transition in unite systems.
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页码:49 / 53
页数:5
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