SO(5) symmetric ladder

被引：76

作者：

Scalapino, D ^{[1
]}

Zhang, SC

Hanke, W

机构：

[1] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

[2] Stanford Univ, Dept Phys, Stanford, CA 94305 USA

[3] Inst Theoret Phys, D-97074 Wurzburg, Germany

来源：

PHYSICAL REVIEW B | 1998年 / 58卷 / 01期

关键词：

D O I：

10.1103/PhysRevB.58.443

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We construct an SO(5) symmetric electron model on a two-chain ladder with purely local interactions on a rung. The ground state phase diagram of this model is determined in the strong-coupling limit. The relationship between the spin-gap magnon mode of the spin-gap insulator and the pi resonance mode of the d-wave pairing phase is discussed. We also present the exact ground state for an SO(5) superspin model. [S0163-1829(98)05022-X].

引用

页码：443 / 452

页数：10

共 16 条

[1] RIGOROUS RESULTS ON VALENCE-BOND GROUND-STATES IN ANTIFERROMAGNETS
AFFLECK, I
KENNEDY, T
LIEB, EH
TASAKI, H
[J]. PHYSICAL REVIEW LETTERS, 1987, 59 (07) : 799 - 802
[2] ARRIGONI E, CONDMAT9712143
[3] Weak-coupling phase diagram of the two-chain Hubbard model
Balents, L
Fisher, MPA
[J]. PHYSICAL REVIEW B, 1996, 53 (18): : 12133 - 12141
[4] Microscopic derivation of the SO(5) symmetric Landau-Ginzburg potential
Burgess, CP
Cline, JM
MacKenzie, R
Ray, R
[J]. PHYSICAL REVIEW B, 1998, 57 (14): : 8549 - 8559
[5] 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
[6] THEORY OF THE RESONANT NEUTRON-SCATTERING OF HIGH-T-C SUPERCONDUCTORS
DEMLER, E
ZHANG, SC
[J]. PHYSICAL REVIEW LETTERS, 1995, 75 (22) : 4126 - 4129
[7] DEMLER E, IN PRESS PHYS REV B
[8] Numerical evidence for SO(5) symmetry and superspin multiplets in the two-dimensional t-J model
Eder, R
Hanke, W
Zhang, SC
[J]. PHYSICAL REVIEW B, 1998, 57 (21): : 13781 - 13789
[9] Exact realization of SO(5) symmetry in extended Hubbard models
Henley, CL
[J]. PHYSICAL REVIEW LETTERS, 1998, 80 (16) : 3590 - 3593
[10] LIN H, 1998, IN PRESS PHYS REV B

← 1 2 →