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Superfluid-Mott-insulator transition in a one-dimensional optical lattice with double-well potentials
Jiang, H. C.; Weng, Z. Y.; Xiang, T.; Jiang, HC , Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China
2007
发表期刊PHYSICAL REVIEW B
ISSN1098-0121
卷号76期号:22页码:-
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.
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
关键词Quantum Renormalization-groups
学科领域Physics
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收录类别SCI
WOS记录号WOS:000251986400085
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被引频次:5[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/311006/5619
专题理论物理所1978-2010年知识产出
通讯作者Jiang, HC , Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China
推荐引用方式
GB/T 7714
Jiang, H. C.,Weng, Z. Y.,Xiang, T.,et al. Superfluid-Mott-insulator transition in a one-dimensional optical lattice with double-well potentials[J]. PHYSICAL REVIEW B,2007,76(22):-.
APA Jiang, H. C.,Weng, Z. Y.,Xiang, T.,&Jiang, HC , Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China.(2007).Superfluid-Mott-insulator transition in a one-dimensional optical lattice with double-well potentials.PHYSICAL REVIEW B,76(22),-.
MLA Jiang, H. C.,et al."Superfluid-Mott-insulator transition in a one-dimensional optical lattice with double-well potentials".PHYSICAL REVIEW B 76.22(2007):-.
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