EXACT SOLUTION OF A HUBBARD CHAIN WITH BOND-CHARGE INTERACTION

被引：132

作者：

ARRACHEA, L

ALIGIA, AA

机构：

[1] COMIS NACL ENERGIA ATOM,INST BALSEIRO,RA-8400 BARILOCHE,RIO NEGRO,ARGENTINA

[2] UNIV NACL LA PLATA,DEPT FIS,RA-1900 LA PLATA,ARGENTINA

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 73卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.73.2240

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We obtain the exact solution of a general Hubbard chain with kinetic energy t, bond-charge interaction X, and on-site repulsion U with the only restriction t = X. At zero temperature and half filling, the model exhibits a Mott transition at U = 4t. In the metallic phase and near half filling, superconducting states are part of the degenerate ground state and are favored for small LI if the system is slightly perturbed.

引用

页码：2240 / 2243

页数：4

共 29 条

[21] PHASE-DIAGRAM OF THE ONE-DIMENSIONAL T-J MODEL
OGATA, M
LUCHINI, MU
SORELLA, S
ASSAAD, FF
[J]. PHYSICAL REVIEW LETTERS, 1991, 66 (18) : 2388 - 2391
[22] Ovchinnikov A. A., 1993, Modern Physics Letters B, V7, P1397, DOI 10.1142/S0217984993001442
[23] MOTT-HUBBARD TRANSITION IN INFINITE DIMENSIONS
ROZENBERG, MJ
ZHANG, XY
KOTLIAR, G
[J]. PHYSICAL REVIEW LETTERS, 1992, 69 (08) : 1236 - 1239
[24] BRINKMAN-RICE TRANSITION IN LAYERED PEROVSKITES
SIMON, ME
ALIGIA, AA
[J]. PHYSICAL REVIEW B, 1993, 48 (10): : 7471 - 7477
[25] SEMIMETAL INSULATOR TRANSITION OF THE HUBBARD-MODEL IN THE HONEYCOMB LATTICE
SORELLA, S
TOSATTI, E
[J]. EUROPHYSICS LETTERS, 1992, 19 (08): : 699 - 704
[26] EXACT GROUND-STATE ENERGY OF THE PERIODIC ANDERSON MODEL IN D=1 AND EXTENDED EMERY MODELS IN D=1,2 FOR SPECIAL PARAMETER VALUES
STRACK, R
[J]. PHYSICAL REVIEW LETTERS, 1993, 70 (06) : 833 - 836
[27] HUBBARD-MODEL WITH NEAREST-NEIGHBOR AND BOND-CHARGE INTERACTION - EXACT GROUND-STATE SOLUTION IN A WIDE-RANGE OF PARAMETERS
STRACK, R
VOLLHARDT, D
[J]. PHYSICAL REVIEW LETTERS, 1993, 70 (17) : 2637 - 2640
[28] EXACT RESULTS IN THE THEORY OF MAGNETIC-ALLOYS
TSVELICK, AM
WIEGMANN, PB
[J]. ADVANCES IN PHYSICS, 1983, 32 (04) : 453 - 713
[29] BETHE ANSATZ STUDY OF 1+1 DIMENSIONAL HUBBARD-MODEL
XIONG, SJ
[J]. ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1992, 89 (01): : 29 - 34

← 1 2 3 →