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题名: Temperature-dependent frequency shifts in collective excitations of a Bose-Einstein condensate
作者: Shi, HL ;  Zheng, WM
刊名: PHYSICAL REVIEW A
出版日期: 1999
卷号: 59, 期号:2, 页码:1562-1565
关键词: ATTRACTIVE INTERACTIONS ;  ATOMIC GAS ;  ENERGY
学科分类: Physics
通讯作者: Shi, HL , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
部门归属: Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: By including the contribution of the thermal cloud in the Lagrangian of the condensate of a Bose gas, we extend the time-dependent variational method at zero temperature to study temperature-dependent low collective excitation modes. A Gaussian trial wave function of the condensate and a static distribution density of the thermal cloud are used and analytical expressions for temperature-dependent excitation frequencies obtained. Theoretical results are compared with measurements in the JILA and MIT experiments. [S1050-2947(99)09202-1].
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000078778500086
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13189
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Shi, HL,Zheng, WM. Temperature-dependent frequency shifts in collective excitations of a Bose-Einstein condensate[J]. PHYSICAL REVIEW A,1999,59(2):1562-1565.
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