Bound electron pairs in strongly correlated models of high-temperature superconductivity

被引：1

作者：

Boyaci, H ^{[1
]}

Kulik, IO ^{[1
]}

机构：

[1] Bilkent Univ, Dept Phys, TR-06533 Ankara, Turkey

来源：

LOW TEMPERATURE PHYSICS | 1998年 / 24卷 / 04期

关键词：

D O I：

10.1063/1.593577

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The ground-state energy of two electrons on a ring is calculated for the one-dimensional Hubbard model with positive and negative on-site interaction and for the contraction model with additive and multiplicative interaction terms. The hc/2e periodicity of the ground-slate energy with respect to a flux Phi threading the loop is derived. The periodicity may serve as an indication of superconductivity. The results are shown to be consistent with the Lieb-Wu solution for Phi=0 limit. In addition, the new states that were missing in the Lieb-Wu solution are derived. (C) 1998 American Institute of Physics.

引用

页码：239 / 246

页数：8

共 28 条

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