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Supersolid phase transitions for hard-core bosons on a triangular lattice
Zhang, XF; Dillenschneider, R; Yu, Y; Eggert, S; Zhang, XF (reprint author), Univ Kaiserslautern, Dept Phys, DE-67663 Kaiserslautern, Germany.
2011
发表期刊PHYSICAL REVIEW B
ISSN1098-0121
卷号84期号:17页码:174515
摘要Hard-core bosons on a triangular lattice with nearest-neighbor repulsion are a prototypical example of a system with supersolid behavior on a lattice. We show that in this model the physical origin of the supersolid phase can be understood quantitatively and analytically by constructing quasiparticle excitations of defects that are moving on an ordered background. The location of the solid to supersolid phase transition line is predicted from the effective model for both positive and negative (frustrated) hopping parameters. For positive hopping parameters the calculations agree very accurately with numerical quantum Monte Carlo simulations. The numerical results indicate that the supersolid to superfluid transition is first order.
部门归属[Zhang, Xue-Feng; Dillenschneider, Raoul; Eggert, Sebastian] Univ Kaiserslautern, Dept Phys, DE-67663 Kaiserslautern, Germany; [Zhang, Xue-Feng; Dillenschneider, Raoul; Eggert, Sebastian] Univ Kaiserslautern, Res Ctr OPTIMAS, DE-67663 Kaiserslautern, Germany; [Zhang, Xue-Feng; Yu, Yue] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
关键词Helium
学科领域Physics
资助者DAAD; DFG via the Research Center [Transregio 49] ; DAAD; DFG via the Research Center [Transregio 49] ; DAAD; DFG via the Research Center [Transregio 49] ; DAAD; DFG via the Research Center [Transregio 49] ; DAAD; DFG via the Research Center [Transregio 49] ; DAAD; DFG via the Research Center [Transregio 49] ; DAAD; DFG via the Research Center [Transregio 49] ; DAAD; DFG via the Research Center [Transregio 49]
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收录类别SCI
语种英语
资助者DAAD; DFG via the Research Center [Transregio 49] ; DAAD; DFG via the Research Center [Transregio 49] ; DAAD; DFG via the Research Center [Transregio 49] ; DAAD; DFG via the Research Center [Transregio 49] ; DAAD; DFG via the Research Center [Transregio 49] ; DAAD; DFG via the Research Center [Transregio 49] ; DAAD; DFG via the Research Center [Transregio 49] ; DAAD; DFG via the Research Center [Transregio 49]
WOS记录号WOS:000297294400015
引用统计
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/14229
专题理论物理所SCI论文
通讯作者Zhang, XF (reprint author), Univ Kaiserslautern, Dept Phys, DE-67663 Kaiserslautern, Germany.
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Zhang, XF,Dillenschneider, R,Yu, Y,et al. Supersolid phase transitions for hard-core bosons on a triangular lattice[J]. PHYSICAL REVIEW B,2011,84(17):174515.
APA Zhang, XF,Dillenschneider, R,Yu, Y,Eggert, S,&Zhang, XF .(2011).Supersolid phase transitions for hard-core bosons on a triangular lattice.PHYSICAL REVIEW B,84(17),174515.
MLA Zhang, XF,et al."Supersolid phase transitions for hard-core bosons on a triangular lattice".PHYSICAL REVIEW B 84.17(2011):174515.
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