GROUND-STATE PROPERTIES OF THE 2-DIMENSIONAL HUBBARD-MODEL

被引：26
|
作者：
LIN, HQ
机构：
来源：
PHYSICAL REVIEW B | 1991年 / 44卷 / 13期
关键词：
D O I：
10.1103/PhysRevB.44.7151
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Using all appropriate symmetries for a two-dimensional square system, we have been able to diagonalize exactly the Hubbard Hamiltonian on the 4 x 4 and 18-site lattices. We calculate the ground-state energies, hole-hole interactions, and various correlation functions as functions of the Coulomb repulsion U and band filling, and compare the Hubbard-model results with those obtained from the t-J and strong-coupling models.
引用
收藏
页码：7151 / 7154
页数：4
相关论文
共 50 条
  • [31] GROUND-STATE PHASE-DIAGRAM OF THE ONE-DIMENSIONAL EXTENDED HUBBARD-MODEL
    CANNON, JW
    SCALETTAR, RT
    FRADKIN, E
    PHYSICAL REVIEW B, 1991, 44 (12): : 5995 - 6001
  • [32] GROUND-STATE PHASE-DIAGRAM OF THE INFINITE DIMENSIONAL HUBBARD-MODEL - A VARIATIONAL STUDY
    FAZEKAS, P
    MENGE, B
    MULLERHARTMANN, E
    ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1990, 78 (01): : 69 - 80
  • [33] GROUND-STATE ENERGY OF THE HALF-FILLED ONE-DIMENSIONAL HUBBARD-MODEL
    ECONOMOU, EN
    POULOPOULOS, PN
    PHYSICAL REVIEW B, 1979, 20 (11): : 4756 - 4758
  • [34] INFINITE UD, UP GROUND-STATE OF THE EXTENDED HUBBARD-MODEL
    GOODING, RJ
    ELSER, V
    PHYSICAL REVIEW B, 1990, 41 (04): : 2557 - 2559
  • [35] THE FERMI-LINEARIZED HUBBARD-MODEL - DIMER GROUND-STATE
    MONTORSI, A
    RASETTI, M
    SOLOMON, AI
    INTERACTING ELECTRONS IN REDUCED DIMENSIONS, 1989, 213 : 27 - 34
  • [36] GROUND-STATE INSTABILITY AND ATTRACTIVE INTERACTIONS IN THE EXTENDED HUBBARD-MODEL
    TRUGMAN, SA
    PHYSICA SCRIPTA, 1989, T27 : 113 - 116
  • [37] GROUND-STATE OF THE EXTENDED HUBBARD-MODEL WITH ATTRACTION AT NEIGHBORING SITES
    SLEPCHENKO, BM
    FIZIKA NIZKIKH TEMPERATUR, 1994, 20 (03): : 216 - 224
  • [38] OPTICAL CONDUCTIVITY OF THE 2-DIMENSIONAL HUBBARD-MODEL
    BRENIG, W
    PHYSICA B-CONDENSED MATTER, 1993, 186-88 : 959 - 961
  • [39] OPTICAL CONDUCTIVITY OF THE 2-DIMENSIONAL HUBBARD-MODEL
    DAGOTTO, E
    MOREO, A
    ORTOLANI, F
    RIERA, J
    SCALAPINO, DJ
    PHYSICAL REVIEW B, 1992, 45 (17): : 10107 - 10110
  • [40] HOLE SPECTRUM IN THE 2-DIMENSIONAL HUBBARD-MODEL
    CARNEIRO, CE
    DEOLIVEIRA, MJ
    SALINAS, SRA
    UIMIN, GV
    PHYSICA C, 1990, 166 (3-4): : 206 - 214
12345