On zero energy states in graphene
arXiv:1405.6961 · doi:10.1209/0295-5075/108/20004
Abstract
We obtain zero energy states in graphene for a number of potentials and discuss the relation of the decoupled Schrödinger-like equations for the the spinor components with non relativistic $\cal{PT}$ symmetric quantum mechanics.
4 pages, 2 figures. Presentation improved, two figures added, references updated