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Zhang, XF; Dillenschneider, R; Yu, Y; Eggert, S; Zhang, XF (reprint author), Univ Kaiserslautern, Dept Phys, DE-67663 Kaiserslautern, Germany.
Supersolid phase transitions for hard-core bosons on a triangular lattice
发表期刊PHYSICAL REVIEW B
语种英语
关键词Helium
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.
2011
ISSN1098-0121
卷号84期号:17页码:174515
学科领域Physics
收录类别SCI
项目资助者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]
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被引频次:25[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/311006/14229
专题理论物理所科研产出_SCI论文
通讯作者Zhang, XF (reprint author), Univ Kaiserslautern, Dept Phys, DE-67663 Kaiserslautern, Germany.
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GB/T 7714
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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