Time-bin encoded atom-photon entanglement in a ¹⁷¹Yb atom array

Recent developments in neutral atom arrays have demonstrated promising prospects in advancing quantum information science. In particular, arrays of ¹⁷¹Yb atoms with nuclear spin I = 1/2 have enabled exciting progress toward quantum computation, metrology, and networking. With an array of ¹⁷¹Yb atoms trapped in tweezers at the magic wavelength for the optical clock transition, we exploit the “omg” level structure to demonstrate manipulation of the metastable nuclear spin qubits with high-fidelity qubit gates and nondestructive readout. We utilize our ability to perform repeated resets of the metastable qubit combined with fast, high-fidelity pulses on the ³P₀ – ³D₁ transition to present time-bin encoded entanglement between the metastable nuclear spin qubit and telecom-band photons. Lastly, we outline our efforts toward extending atom-photon entanglement to the generation of atom-atom remote entanglement. This constitutes an important step towards atom-array-based telecom-band quantum networking.