Figure 1
From: One-qubit quantum gates in a circular graphene quantum dot: genetic algorithm approach
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.