On-chip coupling and synchronization of quantum emitters using superradiant coupling channels

Superradiance offers an efficient approach for coupling discrete quantum emitters via collective fluorescence. In this work, we suggest a method for the controlled coupling and synchronization of distant integrated photonic emitters using superradiance. Our theoretical modeling and analysis using electromagnetic and Master Equation methods for a case of nanodiamond/SiN heterogenous photonic platform confirms efficient superradiant coupling of distant emitters and a good degree of spurious emission isolation. This approach can offer a path to the scalable generation of multipartite photonic states, such as NOON states, and can enable efficient cluster state generation and one-way quantum computing approaches.