# Effect of Coulomb interactions on the physical observables of graphene

@article{Vozmediano2012EffectOC, title={Effect of Coulomb interactions on the physical observables of graphene}, author={Mar'ia A. H. Vozmediano and Francisco Guinea}, journal={Physica Scripta}, year={2012}, volume={2012}, pages={014015} }

We give an update of the situation concerning the effect of electron–electron interactions on the physics of a neutral graphene system at low energies. We revise old renormalization group results and the use of 1/N expansion to address questions of the possible opening of a low-energy gap, and the magnitude of the graphene fine structure constant. We emphasize the role of Fermi velocity as the only free parameter determining the transport and electronic properties of the graphene system and…

## 25 Citations

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Abstract
The experimental observation of the renormalization of the Fermi velocity vF as a function of
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graphene.…

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In the present paper, we investigate the influence of a grounded perfectly conducting surface on the photon self-energy of a $2+1\mathrm{D}$ system of massless Dirac fermions, whose electron…

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