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	Superfluid-Mott-insulator transition in a one-dimensional optical lattice with double-well potentials
	Weng, Z. Y.; Jiang, H. C.; Xiang, T.; Jiang, HC , Tsing Hua Univ, Ctr Adv Study, Beijing 100084, Peoples R China
刊名	PHYSICAL REVIEW B
	2007
卷号	76期号:22页码:-
关键词	Quantum Renormalization-groups
ISSN号	1098-0121
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.
学科主题	Physics
URL标识	查看原文
WOS记录号	WOS:000251986400085
公开日期	2012-08-02
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/5619]
专题	理论物理研究所_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	Weng, Z. Y.,Jiang, H. C.,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	Weng, Z. Y.,Jiang, H. C.,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	Weng, Z. Y.,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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