Nanophotonic Quantum Network Nodes Based on Epitaxial Rare-Earth on Silicon Heterostructures

摘要

We present the development of nanophotonic quantum nodes based on an epitaxial ¹⁶⁷Er³⁺:Y2O3 on silicon platform. Slot photonic crystal cavities with an ultra-small mode volume enable coupling to individual erbium qubits at the telecom wavelength.