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Li, Jinbin; Yu, Yue; Dudarev, Artem M.; Niu, Qian; Li, JB , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China
Interaction broadening of Wannier functions and Mott transitions in atomic BEC
Source PublicationNEW JOURNAL OF PHYSICS
KeywordBose-einstein Condensate Superfluid Model Insulator
AbstractSuperfluid to Mott-insulator transitions in atomic Bose - Einstein condensates (BEC) in optical lattices are investigated for the case of number of atoms per site larger than one. To account for mean field repulsion between the atoms in each well, we construct an orthogonal set of Wannier functions. The resulting hopping amplitude and on-site interaction may be substantially different from those calculated with single-atom Wannier functions. As illustrations of the approach, we consider lattices of various dimensionality and different mean occupations. We find that in three-dimensional optical lattices the correction to the critical lattice depth is significant enough to be measured experimentally even for a small number of atoms. Finally, we discuss the validity of the single-band model.
2006
ISSN1367-2630
Volume8Issue:154Pages:-
Subject AreaPhysics
Indexed BySCI
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Cited Times:32[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/5920
Collection理论物理所科研产出_SCI论文
Corresponding AuthorLi, JB , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Li, Jinbin,Yu, Yue,Dudarev, Artem M.,et al. Interaction broadening of Wannier functions and Mott transitions in atomic BEC[J]. NEW JOURNAL OF PHYSICS,2006,8(154):-.
APA Li, Jinbin,Yu, Yue,Dudarev, Artem M.,Niu, Qian,&Li, JB , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.(2006).Interaction broadening of Wannier functions and Mott transitions in atomic BEC.NEW JOURNAL OF PHYSICS,8(154),-.
MLA Li, Jinbin,et al."Interaction broadening of Wannier functions and Mott transitions in atomic BEC".NEW JOURNAL OF PHYSICS 8.154(2006):-.
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