A cavity-coupled 171Yb atom array platform for distributed quantum computing

Alkaline earth(-like) atoms are an emerging platform for quantum computing and metrology, enabled by ultra-narrow optical clock transitions and long-lived, well-isolated nuclear spin states. Integrating a ytterbium-171 atom array into an optical cavity enables fast, non-destructive readout and efficient photon interconnects between spatially separated modules, supporting long-range interactions for generating large-scale entanglement. We present our efforts to realize a 171Yb atom array in the cavity, with a measured finesse of ~25000 and a mode waist of 16 µm, corresponding to a single-atom cooperativity C≈6 at 556nm. And report our progress towards fast, shelving-based mid-circuit measurements enabled via quantum non-demolition (QND) measurement, essential for fault-tolerant quantum computing. We will also present our plan to utilize the 1389nm telecom transition to enable cavity-assisted remote atom-atom entanglement generation rates up to 10 kHz, with an expected single-photon collection efficiency of ~50%, providing a pathway for distributed quantum computing and large-scale quantum networks.