Progress towards a Hybrid Rydberg Atom, Superconductor Quantum Interface

\indent Hybrid quantum computing schemes bridge disparate quantum technologies in order to construct machines with fast quantum gates and long coherence times. We present progress on our effort towards a hydbrid quantum interface between single cold Rydberg atoms and a Superconducting coplanar waveguide (CPW) resonator. We implement our hybrid interface by trapping a single ground state Cesium atom in a $4$K cryostat, then vertically transporting it into the resonator interaction region. We use a novel two photon excitation via the $6S_{1/2} \rightarrow 5D_{5/2}$ quadrupole transition to excite $nP_{3/2}$ Rydberg states where there exists strong electric-dipole coupling between the atom and the resonator.\\ \\ \indent We have completed construction of the cryostat and the UHV chamber that houses the atoms and chip. We demonstrate single atom trapping results and progress towards initialization and quantum control of atomic qubits in terms of optical pumping, single qubit rotations, and Rydberg excitations.