UNIFIED SLAVE BOSON REPRESENTATION OF SPIN AND CHARGE DEGREES OF FREEDOM FOR STRONGLY CORRELATED FERMI SYSTEMS

被引：129

作者：

FRESARD, R

WOLFLE, P

机构：

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 1992年 / 6卷 / 5-6期

关键词：

D O I：

10.1142/S0217979292000414

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We consider a slave boson representation of lattice electrons in terms of bosons for the empty, singly and doubly occupied site. The approach generalizes an earlier formulation by Kotliar and Ruckenstein. As examples the Hubbard model and the t-J model are considered. The emphasis is on a detailed derivation and discussion of the formal aspects. Simple meanfield solutions are discussed for illustrative purposes.

引用

页码：685 / 704

页数：20