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Static impurities in a supersolid of interacting hard-core bosons on a triangular lattice
Zhang, Xue-Feng; Wen, Yu-Chuan; Eggert, Sebastian; Zhang, XF , Univ Kaiserslautern, Dept Phys, D-67663 Kaiserslautern, Germany
2010
发表期刊PHYSICAL REVIEW B
ISSN1098-0121
卷号82期号:22页码:-
摘要We 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.
部门归属[Zhang, XF; Eggert, S] Univ Kaiserslautern, Dept Phys, D-67663 Kaiserslautern, Germany; [Zhang, XF; Eggert, S] Univ Kaiserslautern, Res Ctr OPTIMAS, D-67663 Kaiserslautern, Germany; [Zhang, XF] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China; [Wen, YC] Capital Normal Univ, Dept Phys, Ctr Theoret Phys, Beijing 10048, Peoples R China
关键词Consequences Helium Chains
学科领域Physics
资助者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] ; 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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收录类别SCI
资助者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] ; National Natural Science Foundation of China[10904096, 10604024]; Natural Science Foundation of Beijing[1092009]; DAAD; DFG via the Research Center[Transregio 49]
WOS记录号WOS:000286758100001
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被引频次:9[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/311006/4995
专题理论物理所1978-2010年知识产出
通讯作者Zhang, XF , Univ Kaiserslautern, Dept Phys, D-67663 Kaiserslautern, Germany
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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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