| 二分量玻色-爱因斯坦凝聚中的二超流体模型 |
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| 引用本文： | 公丕锋,尹新国,路洪艳.二分量玻色-爱因斯坦凝聚中的二超流体模型[J].低温物理学报,2011(4):269-271. |
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| 作者姓名： | 公丕锋 尹新国 路洪艳 |
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| 作者单位： | 淮北师范大学物理系; |
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| 基金项目： | 安徽省高等学校省级自然科学研究项目(批准号:KJ2010B184)资助的课题~~ |
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| 摘 要： | 4He超流体在一定温度下可用二流体模型描述,包括常规流体和超流体两种成分.用这种二流体模型来描述二分量玻色爱因斯坦凝聚时叫做二超流体模型,是从耦合Gross-Pitaevskii方程出发推导得到的.二超流体模型与4He超流体中的二流体模型非常相近.在特定条件下,二超流体中的两个波模行为非常接近4He超流体中二流体模型中...
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| 关 键 词： | 二流体模型 4He超流体 玻色爱因斯坦凝聚 |
TWO-SUPERFLUID MODEL OF TWO-COMPONENT BOSE-EINSTEIN CONDENSATES |
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| GONG Pi-feng YIN Xin-guo LU Hong-yan.TWO-SUPERFLUID MODEL OF TWO-COMPONENT BOSE-EINSTEIN CONDENSATES[J].Chinese Journal of Low Temperature Physics,2011(4):269-271. |
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| Authors: | GONG Pi-feng YIN Xin-guo LU Hong-yan |
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| Institution: | GONG Pi-feng YIN Xin-guo LU Hong-yan Department of Physics,Huaibei Normal University,Anhui Huaibei 235000 |
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| Abstract: | Superfluid 4He at a finite temperature is described by the two-fluid model with the normal fluid component and the superfluid component.We formulate the two-fluid model for two-component BECs,namely two-superfluid model,starting from the coupled Gross-Pitaevskii equations.The two-superfluid model well corresponds to the two-fluid model in superfluid 4He.In a special condition,the two sound modes in the two-superfluid model behave like first and second sounds in the two-fluid model of superfluid 4He. |
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| Keywords: | Two-fluid model Bose-Einstein Condensate Superfluid 4He |
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