An analysis of the zero energy states in graphene
arXiv:1512.02841 · doi:10.1016/j.physleta.2015.12.006
Abstract
Using the concept of complex non PT symmetric potential we study creation of zero energy states in graphene by a scalar potential. The admissible range of the potential parameter values for which such states exist has been examined. The situation with respect to the holes has also been investigated.