Fig. 6: Implementation of quantum gates using nanomagnets driven at 2 GHz.
Each column represents the one-qubit gate indicated in the first row. The second row shows the gate fidelity for the central qubit along with the average fidelity for gate implementation for all 25 qubits at the qubit volume. The uncertainty in fidelity is estimated based on variations (spatial inhomogeneity) of the effective field. The third row is a depiction of the induced magnetic field profile for the central qubit, where Bx, By, Bz components are presented with red, blue and orange lines, respectively. The fourth row indicates contour plots of average gate fidelity, evaluated for frequency detuning and pulse amplitude errors. The color bar shows the average gate fidelity in each contour and the solid lines circumscribe the area where the error per gate is smaller than 3 × 10−3.
