Optical control design of single Si-V^– and Sn-V^– centers in diamond

We design fast, high-fidelity all-optical control of the electron spin qubit of two defects in diamond: the silicon vacancy and the tin vacancy. Our approach can generate arbitrary single qubit rotations through control of the orbital and spin degrees of freedom, both in the absence and presence of an external magnetic field. We test the robustness of our protocols through simulation for various temperatures and use quantum control techniques to mitigate the driving errors and reduce the gate time.