论文标题

可怜的人的缩放:$ xyz $ coqblin- schrieffer模型进行了重新研究

Poor man's scaling: $XYZ$ Coqblin--Schrieffer model revisited

论文作者

Kogan, Eugene, Shi, Zheng

论文摘要

我们得出了一个通用的哈密顿量的三阶穷人缩放方程,描述了嵌入到巡回电子气体中的量子杂质。我们表明,我们中的一个人提出的$ xyz $ coqblin-schrieffer模型在沿尺度轨迹上保留了哈密顿量的形式,在constant and Pseudogap density contest constant and Pseudogap densitys中,将哈密顿量的形式保存在缩放轨迹上,为模型的缩放方程式写下比例轨迹。

We derive the third-order poor man's scaling equation for a generic Hamiltonian describing a quantum impurity embedded into an itinerant electron gas. We show that the $XYZ$ Coqblin--Schrieffer model introduced by one of us earlier is algebraically renormalizable in the sense that the form of the Hamiltonian is preserved along the scaling trajectory, write down the scaling equations for the model, and analyze the renormalization group flows in the cases of both constant and pseudogap densities of states.

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