Renormalization group flow of quartic perturbations in graphene: Strong coupling and large-N limits
Strongly Correlated Electrons
2008-02-21 v2 High Energy Physics - Theory
Abstract
We explore the renormalization group flow of quartic perturbations in the low-energy 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 next-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.
Keywords
Cite
@article{arxiv.0710.1315,
title = {Renormalization group flow of quartic perturbations in graphene: Strong coupling and large-N limits},
author = {Joaquin E. Drut and Dam Thanh Son},
journal= {arXiv preprint arXiv:0710.1315},
year = {2008}
}
Comments
10 pages, 6 figures. Replaced with published version