Connection between the slave-particle and x-operator path-integral representations.: A new perturbative approach

被引：13

作者：

Foussats, A ^{[1
]}

Greco, A ^{[1
]}

Repetto, C ^{[1
]}

Zandron, OP ^{[1
]}

Zandron, OS ^{[1
]}

机构：

[1] Univ Nacl Rosario, Fac Ciencias Exactas Ingn & Agrimensura, RA-2000 Rosario, Argentina

来源：

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL | 2000年 / 33卷 / 33期

关键词：

D O I：

10.1088/0305-4470/33/33/305

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this paper it is shown that the family of first-order Lagrangians for the t-J model and the corresponding correlation-generating functional previously found can be exactly mapped into the slave-fermion decoupled representation. Next, by means of the Faddeev-Jackiw symplectic method, a different family of Lagrangians is constructed and it is shown how the corresponding correlation-generating functional can be mapped into the slave-boson representation. Finally, in order to define the propagation of fermion modes we discuss two alternative ways to treat the fermionic sector in the path-integral formalism for the t-J model.

引用

页码：5849 / 5866

页数：18

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