Electronic Structure in Gapped Graphene with Coulomb Potential
Mesoscale and Nanoscale Physics
2015-05-13 v1
Abstract
In this paper, we numerically study the bound electron states induced by long range Coulomb impurity in gapped graphene and the quasi-bound states in supercritical region based on the lattice model. We present a detailed comparison between our numerical simulations and the prediction of the continuum model which is described by the Dirac equation in (2+1)-dimensional Quantum Electrodynamics (QED). We also use the Fano's formalism to investigate the quasi-bound state development and design an accessible experiments to test the decay of the supercritical vacuum in the gapped graphene.
Cite
@article{arxiv.0804.0984,
title = {Electronic Structure in Gapped Graphene with Coulomb Potential},
author = {W. Zhu and M. L. Liang and Q. W. Shi and Z. F. Wang and J. Chen and J. G. Hou},
journal= {arXiv preprint arXiv:0804.0984},
year = {2015}
}
Comments
5 page, 4 figures