Dual Species Rb-Yb Atom Array

Rydberg atom arrays have recently demonstrated exciting applications in quantum information processing and quantum simulation. However, several important limitations are still found in this platform, such as qubits scalability and robustness to decoherence. Here, we build a dual-species Rb-Yb atom array to address some of these limitations and add further versatility to the platform. We combine the features of alkaline and alkaline-earth-like atoms to implement more robust and flexible quantum architectures. In the Rb-Yb dual species scheme, each element can be trapped, addressed, and imaged with low crosstalk thanks to the natural separation between the relevant wavelengths. This allows us to implement new fundamental tools for quantum error correction, such as mid-circuit readout and independent control of data and ancilla qubits. Moreover, the dual-species system provides us with various inter/intra-species Rydberg interactions, providing new possibilities to study complex quantum many-body phenomena and build efficient multi-qubit gates. Finally, we will implement continuous reloading from the 3D MOT to the tweezer array to compensate for atom losses, which will help scale up the number of qubits available to our quantum algorithms and reduce the experiment cycle time. Here, we present our recent progress in realizing this new quantum platform, our design considerations, and concrete near-term applications.