  An experimental method for detection of bound states around an antidot formed
from a hole in a graphene sheet is proposed by measuring the ballistic two
terminal conductances. In particularly, we consider the effect of bound states
formed by magnetic field on the two terminal conductance and show that one can
observe Breit-Wigner like resonances in the conductance as a function of the
Fermi level close to the energies of the bound states. In addition, we develop
a new numerical method in which the computational effort is proportional to the
linear dimensions, instead of the area of the scattering region beeing typical
for the existing numerical recursive Green's function method.
