| 简谐势阱中弱相互作用玻色气体的临界温度及基态粒子占据率 |
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| 引用本文： | 熊辉,苏国珍,陈丽璇.简谐势阱中弱相互作用玻色气体的临界温度及基态粒子占据率[J].厦门大学学报(自然科学版),2002,41(2):177-181. |
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| 作者姓名： | 熊辉 苏国珍 陈丽璇 |
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| 作者单位： | 厦门大学物理学系,福建,厦门,361005 |
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| 摘 要： | 应用局域密度近似法（LDA）对简谐势约束下的非理想玻色气体发生玻色－爱因斯坦凝聚（BEC）时的临界温度作出计算，进而讨论了弱相互作用对临界温度及基态粒子占据率的影响。这些研究将有助于对BEC这种新物态性质的进一步了解。
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| 关 键 词： | 局域密度近似法 玻色气体 临界温度 简谐势阱 弱相互作用 基态粒子占据率 量子气体 玻色－爱因斯坦凝聚 |
| 文章编号： | 0438-0479(2002)02-0177-05 |
| 修稿时间： | 2001年11月23 |
Critical Temperature and Ground State Fraction of a Weakly Interacting Bose Gas Trapped in a Harmonic Potential |
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| XIONG Hui,SU Guo-zhen,CHEN Li-xuan.Critical Temperature and Ground State Fraction of a Weakly Interacting Bose Gas Trapped in a Harmonic Potential[J].Journal of Xiamen University(Natural Science),2002,41(2):177-181. |
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| Authors: | XIONG Hui SU Guo-zhen CHEN Li-xuan |
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| Abstract: | The critical temperature for the Bose-Einstein Condensation of an imperfect Bose gas trapped in a harmonic potential is calculated by using the local density approximation (LDA). The effects of weak interaction on the critical temperature and ground-state fraction of particles are discussed. The investigation will be helpful for the further understanding of the properties of BEC, which is called as a new kind of state of matter. |
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| Keywords: | local density approximation Bose gas critical temperature |
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