Optical tweezer arrays of neutral atoms provide a controllable and scalable platform for quantum computing and quantum simulation. Neutral atoms in these arrays interact via long-range van der Waals interactions, when excited into Rydberg states. A dual species array adds to the toolbox of atom arrays and allow for schemes involving multiple species. For example, non-destructive measurement, a key ingredient in quantum error correction, can be achieved by entangling “ancillary” qubits with “data” qubits and performing readout on the ancillary qubits. Having two distinct species to play the role of “data” and “ancilla” minimizes crosstalk when performing measurements on “ancilla” qubits or realizing gates between “data” qubits. We present our progress towards a dual species tweezer array platform using Na and Cs atoms. We stochastically load Cs atoms into static traps created by a spatial light modulator and can rearrange them into a desired defect-free pattern with high fidelity using traps formed by acousto-optic deflectors. We can perform Raman sideband cooling on the entire array. We also coherently excite atoms to the Rydberg state and see signatures of the interactions between the atoms.
|Presenter name||Kenneth Wang|
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