APPLICATION OF THE CONNECTED-MOMENTS EXPANSION TO THE HALF-FILLED HUBBARD-MODEL

被引：7
|
作者：
LEE, KC
LO, CF
机构：
[1] Department of Physics, The Chinese University of Hong Kong, Shatin, New Territories
来源：
NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA D-CONDENSED MATTER ATOMIC MOLECULAR AND CHEMICAL PHYSICS FLUIDS PLASMAS BIOPHYSICS | 1993年 / 15卷 / 12期
关键词：
GENERAL THEORY AND MODELS OF MAGNETIC ORDERING;
D O I：
10.1007/BF02451940
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In this paper we have applied the method of connected-moments expansion to investigate the ground state of the half-filled Hubbard model for both the linear chain and the square lattice. The CMX series appear very unstable and give rather poor estimates of the ground-state energies. This seems to suggest that it does not provide a useful method for estimating ground-state energies of this model.
引用
收藏
页码：1483 / 1487
页数：5
相关论文
共 50 条
  • [41] SPIN-WAVES IN THE HALF-FILLED HUBBARD-MODEL BEYOND THE RANDOM-PHASE-APPROXIMATION
    DENTENEER, PJH
    VANLEEUWEN, JMJ
    EUROPHYSICS LETTERS, 1993, 22 (06): : 413 - 418
  • [42] NUMERICAL STUDY OF THE SPECTRAL WEIGHT FUNCTION FOR THE HALF-FILLED 2-DIMENSIONAL HUBBARD-MODEL
    FENG, GS
    WHITE, SR
    PHYSICAL REVIEW B, 1992, 46 (13) : 8691 - 8693
  • [43] BETHE-SALPETER EIGENVALUES AND AMPLITUDES FOR THE HALF-FILLED 2-DIMENSIONAL HUBBARD-MODEL
    BULUT, N
    SCALAPINO, DJ
    WHITE, SR
    PHYSICAL REVIEW B, 1993, 47 (21): : 14599 - 14602
  • [44] SINGLE-HOLE STATE IN THE HALF-FILLED HUBBARD-MODEL - THE COUPLED-CLUSTER METHOD
    LO, CF
    MANOUSAKIS, E
    WANG, YL
    PHYSICS LETTERS A, 1991, 156 (1-2) : 42 - 47
  • [45] MONTE-CARLO SIMULATION OF NEARLY HALF-FILLED HUBBARD-MODEL IN THE GROUND-STATE
    FURUKAWA, N
    IMADA, M
    PHYSICA C, 1991, 185 (pt 3): : 1443 - 1444
  • [46] Metallicity in the half-filled Holstein-Hubbard model
    Fehske, H.
    Hager, G.
    Jeckelmann, E.
    EPL, 2008, 84 (05)
  • [47] Critical entanglement for the half-filled extended Hubbard model
    Spalding, Jon
    Tsai, Shan-Wen
    Campbell, David K.
    PHYSICAL REVIEW B, 2019, 99 (19)
  • [48] Phase diagram of the half-filled ionic Hubbard model
    Bag, Soumen
    Garg, Arti
    Krishnamurthy, H. R.
    PHYSICAL REVIEW B, 2015, 91 (23)
  • [49] HEISENBERG-MODEL CLUSTER-EXPANSION FOR HALF-FILLED HUBBARD AND PPP MODELS
    POSHUSTA, RD
    SCHMALZ, TG
    KLEIN, DJ
    MOLECULAR PHYSICS, 1989, 66 (02) : 317 - 332
  • [50] Ground state properties of half-filled Hubbard model
    Noce, C
    Cuoco, M
    PHYSICS LETTERS A, 1997, 232 (3-4) : 281 - 285
12345