Exact RG computation of the optical conductivity of graphene
arXiv:1110.2988 · doi:10.1103/PhysRevB.85.045420
Abstract
The optical conductivity of a system of electrons on the honeycomb lattice interacting through an electromagnetic field is computed by truncated exact Renormalization Group (RG) methods. We find that the conductivity has the universal value pi/2 times the conductivity quantum up to negligible corrections vanishing as a power law in the limit of low frequencies.
6 pages, 1 figure; one reference updated, a few typos corrected
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Cited by in corpus (8)
- Interaction corrections to the polarization function of graphene
- Many body renormalization of the minimal conductivity in graphene
- Electromagnetic response of interacting Weyl semimetals
- Universal conductivity of graphene in the ultra-relativistic regime
- Topological phase transitions and universality in the Haldane-Hubbard model
- Ground state properties of graphene in Hartree-Fock theory
- Interacting Weyl semimetals on a lattice
- Universal conductivity and dimensional crossover in multi-layer graphene