EXACTLY SOLVABLE MANY-FERMION INDEPENDENT-BOSON SYSTEMS

被引：4

作者：

ZHANG, J

POTZ, W

机构：

[1] Department of Physics, University of Illinois, Chicago

来源：

PHYSICAL REVIEW B | 1993年 / 48卷 / 16期

关键词：

D O I：

10.1103/PhysRevB.48.11583

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Generalized many-fermion versions of the independent-boson model with fixed or variable fermion number are solved exactly. In particular, the linear-response characteristics of these systems are discussed. Exact results for physical quantities, such as the partition function and the two-time correlation function for single-fermion operators, as needed in the Kubo formula, are given and discussed. These nontrivial models may serve as simple model systems for interacting many-particle systems and as a testing ground for approximation schemes for more complex coupled many-particle systems.

引用

页码：11583 / 11591

页数：9

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