The phase diagram of an exactly solvable t-J ladder model

被引：19

作者：

Frahm, H ^{[1
]}

Kundu, A

机构：

[1] Univ Hannover, Inst Theoret Phys, D-30167 Hannover, Germany

[2] Saha Inst Nucl Phys, Theory Grp, Calcutta 700064, W Bengal, India

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 1999年 / 11卷 / 50期

关键词：

D O I：

10.1088/0953-8984/11/50/101

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We study a system of one-dimensional t-J models coupled to a ladder system. A special choice of the interaction between neighbouring rungs leads to an integrable model with supersymmetry, which is broken by the presence of rung interactions. We analyse the spectrum of low-lying excitations and the ground-state phase diagram at zero temperature.

引用

页码：L557 / L562

页数：6

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