Supersolid phase transitions for hard-core bosons on a triangular lattice

ITP OpenIR > SCI期刊论文

	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
Source Publication	PHYSICAL REVIEW B
Language	英语
Keyword	Helium
Abstract	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
ISSN	1098-0121
Volume	84 Issue:17 Pages:174515
Subject Area	Physics
Indexed By	SCI
Funding Organization	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]
Citation statistics	Cited Times:29[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://ir.itp.ac.cn/handle/311006/14229
Collection	SCI期刊论文
Corresponding Author	Zhang, XF (reprint author), Univ Kaiserslautern, Dept Phys, DE-67663 Kaiserslautern, Germany.
Recommended Citation 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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