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题名: Quantum tunneling of Bose-Einstein condensates in optical lattices under gravity
作者: Liu, WM ;  Fan, WB ;  Zheng, WM ;  Liang, JQ ;  Chui, ST
刊名: PHYSICAL REVIEW LETTERS
出版日期: 2002
卷号: 88, 期号:17, 页码:-
关键词: WANNIER-STARK LADDERS ;  INTERFERENCE ;  OSCILLATIONS
学科分类: Physics
通讯作者: Liu, WM , Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA.
部门归属: Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA; Chinese Acad Sci, Inst Phys, Natl Lab Magnetism, Beijing 100080, Peoples R China; Inst Appl Phys & Computat Math, Beijing 100080, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Shanxi Univ, Dept Phys, Taiyuan 030006, Peoples R China; Shanxi Univ, Inst Theoret Phys, Taiyuan 030006, Peoples R China
英文摘要: We investigate the quantum tunneling of Bose-Einstein condensates in optical lattices under gravity in the "Wannier-Stark localization" regime and "Landau-Zener tunneling" regime. Our results agree with experimental data [B. P. Anderson et al., Science 282, 1686 (1998); F. S. Cataliotti et al., Science 293, 843 (2001)]. We obtain the total decay rate which is valid over the entire range of temperatures, and show how it reduces to the appropriate results for the classical thermal activation at high temperatures, the thermally assisted tunneling at intermediate temperatures, and the pure quantum tunneling at low temperatures. We design an experimental protocol to observe this new phenomenon in further experiments.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000175054700008
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/13531
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:
Liu, WM,Fan, WB,Zheng, WM,et al. Quantum tunneling of Bose-Einstein condensates in optical lattices under gravity[J]. PHYSICAL REVIEW LETTERS,2002,88(17):-.
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