Recurrent variational approach to the two-leg Hubbard ladder

被引：7
作者：
Kim, EH [1 ]
Sierra, G
Duffy, D
机构：
[1] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA
[2] CSIC, Inst Matemat & Dis Fundamental, E-28006 Madrid, Spain
来源：
PHYSICAL REVIEW B | 1999年 / 60卷 / 08期
关键词：
D O I：
10.1103/PhysRevB.60.5169
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We applied the recurrent variational approach to the two-leg Hubbard ladder. At half filling, our variational ansatz was a generalization of the resonating valence-bond state. At finite doping, hole pairs were allowed to move in the resonating valence-bond background. The results obtained by the recurrent variational approach were compared with results from density matrix renormalization group. [S0163-1829(99)00332-X].
引用
收藏
页码：5169 / 5178
页数：10
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共 33 条
  • [1] OBSERVATION OF A SPIN GAP IN SRCU2O3 COMPRISING SPIN-1/2 QUASI-1D 2-LEG LADDERS
    AZUMA, M
    HIROI, Z
    TAKANO, M
    ISHIDA, K
    KITAOKA, Y
    [J]. PHYSICAL REVIEW LETTERS, 1994, 73 (25) : 3463 - 3466
  • [2] AN RVB APPROACH TO THE HUBBARD-MODEL
    CICUTA, GM
    STRAMAGLIA, S
    [J]. PHYSICS LETTERS A, 1992, 165 (5-6) : 456 - 462
  • [3] Surprises on the way from one- to two-dimensional quantum magnets: The ladder materials
    Dagotto, E
    Rice, TM
    [J]. SCIENCE, 1996, 271 (5249) : 618 - 623
  • [4] REAL-SPACE RENORMALIZATION-GROUP STUDY OF THE ONE-DIMENSIONAL HUBBARD-MODEL
    DASGUPTA, C
    PFEUTY, P
    [J]. JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1981, 14 (05): : 717 - 735
  • [5] DAUL S, COMMUNICATION
  • [6] Numerical results for generalized resonating-valence-bond wave functions: Application to the Hubbard model
    Fano, G
    Ortolani, F
    Ziosi, L
    [J]. PHYSICAL REVIEW B, 1996, 54 (24): : 17557 - 17563
  • [7] A NEW HOMOLOGOUS SERIES SRN-1CUN+1O2N FOUND IN THE SRO-CUO SYSTEM TREATED UNDER HIGH-PRESSURE
    HIROI, Z
    AZUMA, M
    TAKANO, M
    BANDO, Y
    [J]. JOURNAL OF SOLID STATE CHEMISTRY, 1991, 95 (01) : 230 - 238
  • [8] RENORMALIZATION-GROUP STUDY OF THE HUBBARD-MODEL
    HIRSCH, JE
    [J]. PHYSICAL REVIEW B, 1980, 22 (11): : 5259 - 5266
  • [9] Comparison of different ladder models
    Jeckelmann, E
    Scalapino, DJ
    White, SR
    [J]. PHYSICAL REVIEW B, 1998, 58 (14) : 9492 - 9497
  • [10] MAGNETIC-SUSCEPTIBILITY OF (VO)2P2O7 - A ONE-DIMENSIONAL SPIN-1/2 HEISENBERG-ANTIFERROMAGNET WITH A LADDER SPIN CONFIGURATION AND A SINGLET GROUND-STATE
    JOHNSTON, DC
    JOHNSON, JW
    GOSHORN, DP
    JACOBSON, AJ
    [J]. PHYSICAL REVIEW B, 1987, 35 (01): : 219 - 222
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