Effect of dominant three-body interaction in two-dimensional square lattice

被引：0
作者：
Liang, Ying [1 ]
Guo, Huaiming [2 ]
机构：
[1] Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China
[2] Beihang Univ, Sch Phys & Nucl Energy Engn, Beijing 100191, Peoples R China
来源：
26TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT26), PTS 1-5 | 2012年 / 400卷
关键词：
QUANTUM MONTE-CARLO;
D O I：
10.1088/1742-6596/400/1/012040
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The effect of dominant three-body interaction to hard-core boson Hubbard model is studied on a two-dimensional square lattice. In terms of quantum Monte Carlo method, it is shown explicitly a rho = 2/3 solid phase with coexistence of charge-density-wave and bond orders appears due to the presence of the dominant three-body interaction. For strong three-body interaction, the rho = 2/3 solid phase appears between superfluid phases and shrinks as decreasing the strength of the three-body interaction, forming a lobe structure in the phase diagram. For weak three-body interactions, superfluid phase exists for the whole range of hard-core densities except the full filled case, where the system is a Mott insulator.
引用
收藏
页数：3
相关论文
共 7 条
  • [1] Three-body interactions with cold polar molecules
    Buechler, H. P.
    Micheli, A.
    Zoller, P.
    [J]. NATURE PHYSICS, 2007, 3 (10) : 726 - 731
  • [2] Phase diagram of one-dimensional hard-core bosons with three-body interactions
    Capogrosso-Sansone, B.
    Wessel, S.
    Buechler, H. P.
    Zoller, P.
    Pupillo, G.
    [J]. PHYSICAL REVIEW B, 2009, 79 (02):
  • [3] Cold atoms on a two-dimensional square optical lattice with an alternating potential
    Guo, Huaiming
    Wen, Yuchuan
    Feng, Shiping
    [J]. PHYSICAL REVIEW A, 2009, 79 (03):
  • [4] Stochastic series expansion method with operator-loop update
    Sandvik, AW
    [J]. PHYSICAL REVIEW B, 1999, 59 (22) : 14157 - 14160
  • [5] QUANTUM MONTE-CARLO SIMULATION METHOD FOR SPIN SYSTEMS
    SANDVIK, AW
    KURKIJARVI, J
    [J]. PHYSICAL REVIEW B, 1991, 43 (07): : 5950 - 5961
  • [6] Solids and Supersolids of Three-Body Interacting Polar Molecules on an Optical Lattice
    Schmidt, Kai P.
    Dorier, Julien
    Laeuchli, Andreas M.
    [J]. PHYSICAL REVIEW LETTERS, 2008, 101 (15)
  • [7] Quantum Monte Carlo with directed loops -: art. no. 046701
    Syljuåsen, OF
    Sandvik, AW
    [J]. PHYSICAL REVIEW E, 2002, 66 (04): : 28
1