Radial probability density (lowest states) and qubit subspace density and pseudospin current. (a) Radial probability density plot for the four lowest energy states inside the graphene quantum dot with R = 25 nm and under a homogeneous magnetic field of magnitude B = 3.043 T. The selected computational basis (qubit subspace) is inside the red box. Qubit subspace spatial probability density plot and vector field of the pseudospin current in (b) |0〉 = |ψ1/2 and (c) |1〉 = |ψ− 1/2 , respectively.
Amparán et al. Nanoscale Research Letters 2013 8:242 doi:10.1186/1556-276X-8-242