Quantum Computing and Simulation with Atom Arrays

Atom arrays have reshaped the frontiers of quantum simulation, metrology, and computing in recent years. In this talk, I will present our approach to controlling the metastable excited-state manifold of bosonic strontium atoms. Combining long coherence times, high-fidelity manipulation, and coherent atom shuttling with the THz-scale splitting of the metastable manifold, we establish a versatile platform for applications including logical qubits and measurement-based quantum computing. In particular, we exploit the narrow-line transitions to the ground state to perform velocity-selective addressing of atoms in motion, adding a new dynamical degree of control to atom arrays. In the second part, I will present our ongoing work on a new platform integrating an optical resonator with a Rydberg tweezer array. I will show how Rydberg excitations can be made compatible with strong single-atom–single-photon coupling through electric-field shielding. Uniting programmable interactions with strong light–matter coupling, this platform is well placed to realize novel interfaces for quantum simulators and quantum computers.