Integrating silicon carbide spintronics quantum systems

Abstract

As the second quantum revolution is unfolding, the investigation and development of individual quantum systems best-suited to lead this revolution is thriving. In the surge of new platforms, our work aims to decipher the role that silicon carbide’s color centers could play in the near-future. In this dissertation, we demonstrate that ion-assisted implantation and integration in nanophotonic waveguides preserve the silicon vacancy center spin-optical properties. Further, high-fidelity coherent manipulation of integrated nuclear spins via decoupling sequences is shown, which is a critical ressource for mutli-qubit local registers. Our work paves the way towards integration into nanophotonic resonators, overcoming the inherent low light collection efficiency of optically active spins in the solid.