| 均匀相互作用玻色气体的凝聚温度 |
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| 引用本文： | 刘淑娟,黄国翔. 均匀相互作用玻色气体的凝聚温度[J]. 华东师范大学学报(自然科学版), 2001, 0(2): 46-51 |
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| 作者姓名： | 刘淑娟 黄国翔 |
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| 作者单位： | 华东师范大学物理系,;华东师范大学物理系, |
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| 基金项目： | 国家自然科学基金!( 199750 19) |
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| 摘 要： | 最近人们已经在实验中实现了相互作用玻色气体的玻色－爱因斯坦凝聚,相互作用玻色气体的凝聚温度是玻色－爱因斯坦凝聚问题中一个重要的热力学量,运用鹰势方法和巨正则分布,作者对盒子中相互作用玻色气全的凝聚温度给预了详细考察,研究表明凝聚温度的移动为δTc/Tc=-2.9an^1/3,此处a和n分别为两粒子的S波散射长度和粒子精密度。
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| 关 键 词： | 玻色—爱因斯坦凝聚 凝聚温度 膺势法 |
| 文章编号： | 1000-5641(2001)02-0046-06 |
| 修稿时间： | 2000-04-01 |
Condensation Temperature of Uniform Interacting Bose Gases |
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| LIU Shu-juan,HUANG Guo-xiang. Condensation Temperature of Uniform Interacting Bose Gases[J]. Journal of East China Normal University(Natural Science), 2001, 0(2): 46-51 |
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| Authors: | LIU Shu-juan HUANG Guo-xiang |
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| Abstract: | The Bose-Einstein condensation (BEC) of weakly interacting Bose gases has been realized recently in experiment. The condensation temperature of a uniform interacting Bose gas is an important thermodynamic quantity fot the BEC. In this paper, the pseudopotential method and grand canonical ensemble are used to investigate the condensation temperature of the uniform interacting Bose gas. The results show that, due to the interaction between particles, the shift of the condensation temperature is δTc/Tc=-2.9an1/3, where a and n are the two-particle scattering length of S-wave and the particle number density, respectively. |
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| Keywords: | Bose-Einstein condensation condensation temperature pseudopotential method |
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