Smooth Optimal Quantum Control for Robust Solid-State Spin Magnetometry
Smooth Optimal Quantum Control for Robust Solid-State Spin Magnetometry
We experimentally demonstrate a simple yet versatile optimal quantum control technique that achieves tailored robustness against qubit inhomogeneities and control errors while requiring minimal bandwidth. We apply the technique to nitrogen-vacancy (NV) centers in diamond and verify its performance using quantum process tomography. In a wide-field NV center magnetometry scenario, …