A quantum computing platform using a 2D array of Cs neutral atom qubits

We present our recent progress towards quantum computing with a two-dimensional atomic qubit array. Cooled Cs atoms are loaded into a blue-detuned optical lattice constructed from cross-hatched lines. Atomic rearrangement using optical tweezers is used to deterministically load atoms into targeted sites to create defect free atomic arrays. Single-site quantum gates are performed using resonant microwaves and site-selective Stark shifts; controlled-Z gates are performed using two-photon Rydberg excitations. Using this universal gate set, we demonstrate a variety of multi-qubit quantum algorithms. We present results using the variational quantum eigensolver algorithm to estimate ground state energies of the Lipkin Hamiltonian. We will also present implementation of mid-circuit readout of ancilla qubits in a 3x3 2D array of Cs atoms based on shelving data qubits into a dark hyperfine manifold and progress towards ancilla recooling and resetting.