Renormalization group flow of quartic perturbations in graphene:: Strong coupling and large-N limits

被引：45

作者：

Drut, Joaquin E. ^{[1
]}

Son, Dam Thanh ^{[1
]}

机构：

[1] Univ Washington, Inst Nucl Theory, Seattle, WA 98195 USA

来源：

PHYSICAL REVIEW B | 2008年 / 77卷 / 07期

关键词：

D O I：

10.1103/PhysRevB.77.075115

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We explore the renormalization group flow of quartic perturbations in the low-enegy theory of graphene, in the strong Coulomb coupling and large-N limits, where N is the number of fermion flavors. We compute the anomalous dimensions of the quartic couplings u up to leading order in 1/N and find both relevant and irrelevant directions in the space of quartic couplings. We discuss possible phase diagrams and relevance for the physics of graphene.

引用

页数：5

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