Superfluid-to-Bose-glass transition of hard-core bosons in a one-dimensional incommensurate optical lattice

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	Superfluid-to-Bose-glass transition of hard-core bosons in a one-dimensional incommensurate optical lattice
	Cai, XM ; Chen, S ; Wang, YP
刊名	PHYSICAL REVIEW A
	2010
卷号	81 期号:2
关键词	REAL-SPACE RENORMALIZATION TONKS-GIRARDEAU GAS ANDERSON LOCALIZATION INSULATOR-TRANSITION SYSTEMS DIFFUSION LIGHT MODEL
ISSN号	1050-2947
通讯作者	Cai, XM (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.
中文摘要	The superfluid-to-Anderson-insulator transition of a strongly repulsive Bose gas is studied in a one-dimensional incommensurate optical lattice. In the hard-core limit, the Bose-Fermi mapping allows us to deal with the system using the exact numerical method. Based on the Aubry-Andre model, we exploit the phase transition of the hard-core boson system from the superfluid phase with all single-particle states extended to the Bose-glass phase with all the single-particle states being Anderson localized as the strength of the incommensurate potential increases relative to the hopping amplitude. We evaluate the superfluid fraction, one-particle density matrices, momentum distributions, the natural orbitals, and their occupations. All of these quantities show that there exists a superfluid-to-insulator phase transition in the system.
收录类别	SCI
资助信息	National Science Foundation of China [10821403, 10974234]; Chinese Academy of Science [2010CB922904]; Ministry of Science and Technology
语种	英语
公开日期	2013-09-24
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/54110]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Cai, XM,Chen, S,Wang, YP. Superfluid-to-Bose-glass transition of hard-core bosons in a one-dimensional incommensurate optical lattice[J]. PHYSICAL REVIEW A,2010,81(2).
APA	Cai, XM,Chen, S,&Wang, YP.(2010).Superfluid-to-Bose-glass transition of hard-core bosons in a one-dimensional incommensurate optical lattice.PHYSICAL REVIEW A,81(2).
MLA	Cai, XM,et al."Superfluid-to-Bose-glass transition of hard-core bosons in a one-dimensional incommensurate optical lattice".PHYSICAL REVIEW A 81.2(2010).