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Zhang, Xue-Feng; Wen, Yu-Chuan; Eggert, Sebastian; Zhang, XF , Univ Kaiserslautern, Dept Phys, D-67663 Kaiserslautern, Germany
Static impurities in a supersolid of interacting hard-core bosons on a triangular lattice
Source PublicationPHYSICAL REVIEW B
KeywordConsequences Helium Chains
AbstractWe study the effect of impurities in a supersolid phase in comparison to the behavior in the solid and superfluid phases. A supersolid phase has been established for interacting hard-core bosons on a triangular lattice which may be realizable by ultracold atomic gases. Static vacancies are considered in this model which always lower the magnitude of the order parameter in the solid or superfluid phases. In the supersolid phase, however, the impurities directly affect both order parameters simultaneously and thereby reveal an interesting interplay between them. In particular, the solid order may be enhanced at the cost of a strong reduction in the superfluidity, which shows that the two order parameters cannot be in a simple superposition. We also observe an unusual impurity pinning effect in the solid ordered phase, which results in two distinct states separated by a first-order transition.
2010
ISSN1098-0121
Volume82Issue:22Pages:-
Subject AreaPhysics
Indexed BySCI
Funding OrganizationNational Natural Science Foundation of China[10904096, 10604024]; Natural Science Foundation of Beijing[1092009]; DAAD; DFG via the Research Center[Transregio 49] ; National Natural Science Foundation of China[10904096, 10604024]; Natural Science Foundation of Beijing[1092009]; DAAD; DFG via the Research Center[Transregio 49] ; National Natural Science Foundation of China[10904096, 10604024]; Natural Science Foundation of Beijing[1092009]; DAAD; DFG via the Research Center[Transregio 49] ; National Natural Science Foundation of China[10904096, 10604024]; Natural Science Foundation of Beijing[1092009]; DAAD; DFG via the Research Center[Transregio 49]
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Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/4995
Collection理论物理所科研产出_SCI论文
Corresponding AuthorZhang, XF , Univ Kaiserslautern, Dept Phys, D-67663 Kaiserslautern, Germany
Recommended Citation
GB/T 7714
Zhang, Xue-Feng,Wen, Yu-Chuan,Eggert, Sebastian,et al. Static impurities in a supersolid of interacting hard-core bosons on a triangular lattice[J]. PHYSICAL REVIEW B,2010,82(22):-.
APA Zhang, Xue-Feng,Wen, Yu-Chuan,Eggert, Sebastian,&Zhang, XF , Univ Kaiserslautern, Dept Phys, D-67663 Kaiserslautern, Germany.(2010).Static impurities in a supersolid of interacting hard-core bosons on a triangular lattice.PHYSICAL REVIEW B,82(22),-.
MLA Zhang, Xue-Feng,et al."Static impurities in a supersolid of interacting hard-core bosons on a triangular lattice".PHYSICAL REVIEW B 82.22(2010):-.
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