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Zhang, XF; Hu, SJ; Pelster, A; Eggert, S; Hu, SJ (reprint author), Univ Kaiserslautern, Dept Phys, D-67663 Kaiserslautern, Germany.; Hu, SJ (reprint author), Univ Kaiserslautern, Res Ctr OPTIMAS, D-67663 Kaiserslautern, Germany.; Zhang, XF (reprint author), Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany.; Zhang, XF (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
Quantum Domain Walls Induce Incommensurate Supersolid Phase on the Anisotropic Triangular Lattice
发表期刊PHYSICAL REVIEW LETTERS
语种英语
摘要We investigate the extended hard-core Bose-Hubbard model on the triangular lattice as a function of spatial anisotropy with respect to both hopping and nearest-neighbor interaction strength. At half-filling the system can be tuned from decoupled one-dimensional chains to a two-dimensional solid phase with alternating density order by adjusting the anisotropic coupling. At intermediate anisotropy, however, frustration effects dominate and an incommensurate supersolid phase emerges, which is characterized by incommensurate density order as well as an anisotropic superfluid density. We demonstrate that this intermediate phase results from the proliferation of topological defects in the form of quantum bosonic domain walls. Accordingly, the structure factor has peaks at wave vectors, which are linearly related to the number of domain walls in a finite system in agreement with extensive quantum Monte Carlo simulations. We discuss possible connections with the supersolid behavior in the high-temperature superconducting striped phase.
2016
卷号117期号:19页码:193201
学科领域Physics
DOIhttp://dx.doi.org/10.1103/PhysRevLett.117.193201
收录类别SCI
项目资助者Chinese Academy of Sciences via the Open Project Program of the State Key Laboratory of Theoretical Physics ; Chinese Academy of Sciences via the Open Project Program of the State Key Laboratory of Theoretical Physics ; Chinese Academy of Sciences via the Open Project Program of the State Key Laboratory of Theoretical Physics ; Chinese Academy of Sciences via the Open Project Program of the State Key Laboratory of Theoretical Physics ; Nachwuchsring of the TU Kaiserslautern ; Nachwuchsring of the TU Kaiserslautern ; Nachwuchsring of the TU Kaiserslautern ; Nachwuchsring of the TU Kaiserslautern ; German Research Foundation (DFG) [SFB/TR49, SFB/TR173, SFB/TR185] ; German Research Foundation (DFG) [SFB/TR49, SFB/TR173, SFB/TR185] ; German Research Foundation (DFG) [SFB/TR49, SFB/TR173, SFB/TR185] ; German Research Foundation (DFG) [SFB/TR49, SFB/TR173, SFB/TR185]
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文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/21489
专题理论物理所科研产出_SCI论文
通讯作者Zhang, XF; Hu, SJ (reprint author), Univ Kaiserslautern, Dept Phys, D-67663 Kaiserslautern, Germany.; Hu, SJ (reprint author), Univ Kaiserslautern, Res Ctr OPTIMAS, D-67663 Kaiserslautern, Germany.; Zhang, XF (reprint author), Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany.; Zhang, XF (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
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Zhang, XF,Hu, SJ,Pelster, A,et al. Quantum Domain Walls Induce Incommensurate Supersolid Phase on the Anisotropic Triangular Lattice[J]. PHYSICAL REVIEW LETTERS,2016,117(19):193201.
APA Zhang, XF.,Hu, SJ.,Pelster, A.,Eggert, S.,Hu, SJ .,...&Zhang, XF .(2016).Quantum Domain Walls Induce Incommensurate Supersolid Phase on the Anisotropic Triangular Lattice.PHYSICAL REVIEW LETTERS,117(19),193201.
MLA Zhang, XF,et al."Quantum Domain Walls Induce Incommensurate Supersolid Phase on the Anisotropic Triangular Lattice".PHYSICAL REVIEW LETTERS 117.19(2016):193201.
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