| 二维简谐势阱中理想气体玻色-爱因斯坦凝聚的转变温度 |
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| 引用本文： | 王翀,闫柯柱. 二维简谐势阱中理想气体玻色-爱因斯坦凝聚的转变温度[J]. 曲阜师范大学学报, 2003, 29(4): 65-68 |
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| 作者姓名： | 王翀 闫柯柱 |
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| 作者单位： | 曲阜师范大学物理系,273165,山东省曲阜市;曲阜师范大学物理系,273165,山东省曲阜市 |
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| 摘 要： | 用直接数值求和的方法研究了低温、低密度理想量子气体的玻色一爱因斯坦凝聚问题．对于二维简谐势阱体系,计算了体系粒子数给定时玻色一爱因斯坦凝聚的转变温度,并分析了积分方法与数值求和方法存在差别的原因．结果表明在低温、低密度条件下采用数值方法可更精确的反映系统的特性,积分方法的结果应作修正．
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| 关 键 词： | 玻色-爱因斯坦凝聚 转变温度 数值求和 |
| 文章编号： | 1001-5337(2003)04-0065-04 |
| 修稿时间： | 2003-02-24 |
CRITICAL TEMPERATURE OF BOSE-EINSTEIN CONDENSATION FOR UNIFORM GAS IN TWO-DIMENSION HARMONIC TRAP |
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| WANG Chong,YAN Ke_zhu. CRITICAL TEMPERATURE OF BOSE-EINSTEIN CONDENSATION FOR UNIFORM GAS IN TWO-DIMENSION HARMONIC TRAP[J]. Journal of Qufu Normal University(Natural Science), 2003, 29(4): 65-68 |
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| Authors: | WANG Chong YAN Ke_zhu |
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| Abstract: | Starting from Bose statistical formula, the relation between the given particles and the critical temperature for the uniform gas in two_dimension harmonic trap are calculated directly. This relation was shown in form of graph, together with the result from integration method. And the differences between numerical method and integration me thod are explained. The conclusion was that the integration method is not prec ise on condition of low temperature and low density and the numerical method is more appropr iate. |
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| Keywords: | Bose-Einstein condensation critical temperature numerical calculation |
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