Overcoming limitations on gate fidelity in noisy static exchange-coupled surface qubits

Abstract Recent experiments demonstrated that the spin state of individual atoms on surfaces can be quantum-coherently controlled through all-electric electron spin resonance. By constructing interacting arrays of atoms, this results in an atomic-scale qubit platform. However, the static exchange coupling between qubits, limited lifetime, and polarization of the initial state impose significant limits on high-fidelity quantum control. We address this issue using open quantum systems simulation a