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

被引：27

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.

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页码：7151 / 7154

页数：4

相关论文

共 26 条

[1] THE RESONATING VALENCE BOND STATE IN LA2CUO4 AND SUPERCONDUCTIVITY [J].

ANDERSON, PW .

SCIENCE, 1987, 235 (4793) :1196-1198

[2] BINDING OF HOLES IN THE HUBBARD-MODEL [J].

DAGOTTO, E ;

MOREO, A ;

SUGAR, RL ;

TOUSSAINT, D .

PHYSICAL REVIEW B, 1990, 41 (01) :811-814

[3] STRONGLY CORRELATED ELECTRONIC SYSTEMS WITH ONE HOLE - DYNAMIC PROPERTIES [J].

DAGOTTO, E ;

JOYNT, R ;

MOREO, A ;

BACCI, S ;

GAGLIANO, E .

PHYSICAL REVIEW B, 1990, 41 (13) :9049-9073

[4] DYNAMICS OF ONE HOLE IN THE T-J MODEL [J].

DAGOTTO, E ;

MOREO, A ;

JOYNT, R ;

BACCI, S ;

GAGLIANO, E .

PHYSICAL REVIEW B, 1990, 41 (04) :2585-2588

[5] THEORY OF HIGH-TC SUPERCONDUCTIVITY IN OXIDES [J].

EMERY, VJ .

PHYSICAL REVIEW LETTERS, 1987, 58 (26) :2794-2797

[6] PHASE-SEPARATION IN THE T-J MODEL [J].

EMERY, VJ ;

KIVELSON, SA ;

LIN, HQ .

PHYSICAL REVIEW LETTERS, 1990, 64 (04) :475-478

[7] HOLE-HOLE EFFECTIVE INTERACTION IN THE 2-DIMENSIONAL HUBBARD-MODEL [J].

FANO, G ;

ORTOLANI, F ;

PAROLA, A .

PHYSICAL REVIEW B, 1990, 42 (10) :6877-6880

[8] VALIDITY OF THE STRONG-COUPLING EXPANSION OF THE TWO-DIMENSIONAL HUBBARD-MODEL [J].

FRIEDMAN, B ;

CHEN, XY ;

SU, WP .

PHYSICAL REVIEW B, 1989, 40 (07) :4431-4436

[9]

FYE RM, UNPUB

[10]

GRUGMAN SA, 1990, PHYS REV B, V41, P892