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Temperature-dependent frequency shifts in collective excitations of a Bose-Einstein condensate
Shi, HL; Zheng, WM; Shi, HL , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
1999
发表期刊PHYSICAL REVIEW A
ISSN1050-2947
卷号59期号:2页码:1562-1565
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].
部门归属Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词Attractive Interactions Atomic Gas Energy
学科领域Physics
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收录类别SCI
WOS记录号WOS:000078778500086
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被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13189
专题理论物理所1978-2010年知识产出
通讯作者Shi, HL , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
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Shi, HL,Zheng, WM,Shi, HL , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.. Temperature-dependent frequency shifts in collective excitations of a Bose-Einstein condensate[J]. PHYSICAL REVIEW A,1999,59(2):1562-1565.
APA Shi, HL,Zheng, WM,&Shi, HL , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China..(1999).Temperature-dependent frequency shifts in collective excitations of a Bose-Einstein condensate.PHYSICAL REVIEW A,59(2),1562-1565.
MLA Shi, HL,et al."Temperature-dependent frequency shifts in collective excitations of a Bose-Einstein condensate".PHYSICAL REVIEW A 59.2(1999):1562-1565.
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