D-WAVE, DIMER, AND CHIRAL STATES IN THE 2-DIMENSIONAL HUBBARD-MODEL

被引:40
作者
PAROLA, A [1 ]
SORELLA, S [1 ]
PARRINELLO, M [1 ]
TOSATTI, E [1 ]
机构
[1] IBM CORP,DIV RES,ZURICH RES LAB,CH-8803 RUSCHLIKON,SWITZERLAND
来源
PHYSICAL REVIEW B | 1991年 / 43卷 / 07期
关键词
D O I
10.1103/PhysRevB.43.6190
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The ground-state properties of two holes on a 4 x 4 Hubbard cluster have been studied using a Lanczos algorithm at intermediate coupling U = 4. Several states have been found to lie within a very small energy range at the bottom of the spectrum. Although many properties of these states are remarkably similar, their overall symmetries are quite different, suggesting different possible scenarios in larger systems.
引用
收藏
页码:6190 / 6193
页数:4
相关论文
共 15 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] Anderson P.W., 1988, FRONTIERS BORDERLINE
  • [3] BASKARAN G, UNPUB
  • [4] EXACT-DIAGONALIZATION STUDY OF THE EFFECTIVE MODEL FOR HOLES IN THE PLANAR ANTIFERROMAGNET
    BONCA, J
    PRELOVSEK, P
    SEGA, I
    [J]. PHYSICAL REVIEW B, 1989, 39 (10) : 7074 - 7080
  • [5] BINDING OF HOLES IN THE HUBBARD-MODEL
    DAGOTTO, E
    MOREO, A
    SUGAR, RL
    TOUSSAINT, D
    [J]. PHYSICAL REVIEW B, 1990, 41 (01): : 811 - 814
  • [6] DAGOTTO E, UNPUB
  • [7] INSTABILITY OF THE LONG-RANGE RESONATING-VALENCE-BOND STATE IN THE MEAN-FIELD APPROACH
    DOMBRE, T
    KOTLIAR, G
    [J]. PHYSICAL REVIEW B, 1989, 39 (01): : 855 - 857
  • [8] HOLE-HOLE EFFECTIVE INTERACTION IN THE 2-DIMENSIONAL HUBBARD-MODEL
    FANO, G
    ORTOLANI, F
    PAROLA, A
    [J]. PHYSICAL REVIEW B, 1990, 42 (10): : 6877 - 6880
  • [9] HOLE DYNAMICS IN THE T-J MODEL - AN EXACT DIAGONALIZATION STUDY
    HASEGAWA, Y
    POILBLANC, D
    [J]. PHYSICAL REVIEW B, 1989, 40 (13): : 9035 - 9043
  • [10] TOPOLOGY OF THE RESONATING VALENCE-BOND STATE - SOLITONS AND HIGH-TC SUPERCONDUCTIVITY
    KIVELSON, SA
    ROKHSAR, DS
    SETHNA, JP
    [J]. PHYSICAL REVIEW B, 1987, 35 (16): : 8865 - 8868