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题名: Superfluid-Mott-insulator transition in a one-dimensional optical lattice with double-well potentials
作者: Jiang, H. C. ;  Weng, Z. Y. ;  Xiang, T.
刊名: PHYSICAL REVIEW B
出版日期: 2007
卷号: 76, 期号:22, 页码:-
关键词: QUANTUM RENORMALIZATION-GROUPS
学科分类: Physics
通讯作者: Jiang, HC , Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China
部门归属: [Jiang, HC; Weng, ZY] Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China; [Xiang, T] Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要: We study the superfluid-Mott-insulator transition of ultracold bosonic atoms in a one-dimensional optical lattice with a double-well confining trap using the density-matrix renormalization group method. At low density, the system behaves similarly as two separated ones inside each well. At high density, however, interesting features appear resulting from the quantum tunnelling between the two wells and the competition between the "superfluid" and Mott regions. These interesting features are characterized by a rich step-plateau structure in the visibility and the satellite peaks in the momentum distribution function, with an oscillating pattern as a function of the on-site repulsion. These properties shed light on the understanding of the quantum phase coherence between two coupled condensates.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000251986400085
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5619
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:
Jiang, H. C.,Weng, Z. Y.,Xiang, T.. Superfluid-Mott-insulator transition in a one-dimensional optical lattice with double-well potentials[J]. PHYSICAL REVIEW B,2007,76(22):-.
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