Current carrying ground state in a bilayer model of strongly correlated systems

被引：28
作者：
Capponi, S
Wu, CJ
Zhang, SC
机构：
[1] Univ Toulouse 3, Phys Theor Lab, UMR 5152, F-31062 Toulouse, France
[2] Stanford Univ, Dept Phys, Stanford, CA 94305 USA
来源：
PHYSICAL REVIEW B | 2004年 / 70卷 / 22期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1103/PhysRevB.70.220505
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Strongly interacting systems have been conjectured to spontaneously develop current carrying ground states under certain conditions. We demonstrate the existence of a commensurate staggered interlayer current phase in a bilayer model by using the recently discovered quantum Monte Carlo algorithm without the sign problem for fermionic systems. A pseudospin SU(2) algebra and the corresponding anisotropic spin-1 Heisenberg model are constructed to show the competition among the staggered interlayer current, rung singlet, and charge density wave phases.
引用
收藏
页码：220505 / 1
页数：4
相关论文
共 24 条
  • [1] LARGE-N LIMIT OF THE HEISENBERG-HUBBARD MODEL - IMPLICATIONS FOR HIGH-TC SUPERCONDUCTORS
    AFFLECK, I
    MARSTON, JB
    [J]. PHYSICAL REVIEW B, 1988, 37 (07) : 3774 - 3777
  • [2] Spin and charge dynamics of stripes in doped Mott insulators
    Assaad, FF
    Rousseau, V
    Hebert, F
    Feldbacher, M
    Batrouni, GG
    [J]. EUROPHYSICS LETTERS, 2003, 63 (04): : 569 - 575
  • [3] Charge and spin structures of a dx(2)-y(2) superconductor in the proximity of an antiferromagnetic Mott insulator
    Assaad, FF
    Imada, M
    Scalapino, DJ
    [J]. PHYSICAL REVIEW B, 1997, 56 (23): : 15001 - 15014
  • [4] Non-Abelian electrons: SO(5) superspin regimes for correlated electrons on a two-leg ladder
    Bouwknegt, P
    Schoutens, K
    [J]. PHYSICAL REVIEW LETTERS, 1999, 82 (13) : 2757 - 2760
  • [5] Hidden order in the cuprates
    Chakravarty, S
    Laughlin, RB
    Morr, DK
    Nayak, C
    [J]. PHYSICAL REVIEW B, 2001, 63 (09):
  • [6] Hidden orbital order in the heavy fermion metal URu2Si2
    Chandra, P
    Coleman, P
    Mydosh, JA
    Tripathi, V
    [J]. NATURE, 2002, 417 (6891) : 831 - 834
  • [7] Evolution of the low-energy excitation spectrum from the pure Hubbard ladder to the SO(5) ladder: A numerical study
    Duffy, D
    Haas, S
    Kim, E
    [J]. PHYSICAL REVIEW B, 1998, 58 (10): : R5932 - R5935
  • [8] Staggered orbital currents in the half-filled two-leg ladder -: art. no. 125106
    Fjærestad, JO
    Marston, JB
    [J]. PHYSICAL REVIEW B, 2002, 65 (12) : 1 - 8
  • [9] Electronic ladders with SO(5) symmetry: Phase diagrams and correlations at half filling
    Frahm, H
    Stahlsmeier, M
    [J]. PHYSICAL REVIEW B, 2001, 63 (12):
  • [10] 2 OBSERVABLE FEATURES OF THE STAGGERED-FLUX PHASE AT NONZERO DOPING
    HSU, TC
    MARSTON, JB
    AFFLECK, I
    [J]. PHYSICAL REVIEW B, 1991, 43 (04): : 2866 - 2877
123