Exploring Quantum Networking Nodes for Neutral Atom Tweezer Arrays

Rydberg atom arrays are promising candidate for quantum computation and information. Scaling up the platform beyond a few thousand qubits would require a modular approach. An integrated optical cavity could serve as a quantum networking node between distant quantum processors. Here we explore and compare two candidates for such a networking node: a nano-photonic crystal cavity (PCC) and a Fabry-Perot Fiber cavity (FPFC). With its small size, the PCC is compatible with Rydberg atoms ~ 200um away, however in its current design it can only host two atoms at the same time. The FPFC provides simultaneous strong coupling of many atoms in individual optical tweezers.