扩展动力学平均场理论中近藤晶格模型的Luttinger-Ward泛函方法（英文）

Luttinger-Ward Functional Approach of Kondo Lattice Model in Extended Dynamic Mean Field Theory

提出了一种新的基于Luttinger-Ward泛函的图解赝粒子方法来处理具有RKKY相互作用的重费米子体系的近藤晶格模型。采用此新方法,近藤晶格模型的光导结果被给出,并与已有研究结果较好相符。

In this paper we present a new scheme of the diagrammatic pseudo-particle approach based on the Luttinger-Ward functional for the full KLM of the heavy fermions systems with RKKY interaction. The optical conductivity of KLM is also given as an example of applying this approach.