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arXiv · 2406.07356

Fast measurements and multiqubit gates in dual species atomic arrays

D. Petrosyan·S. Norrell·C. Poole·M. Saffman
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Abstract

We propose and analyze an approach for fast syndrome measurements in an array of rubidium and cesium atomic qubits. The scheme works by implementing an inter-species $\textsf{CNOT}_k$ gate, entangling one cesium ancilla qubit with $k\geq 1$ rubidium qubits which are then used for state measurement. Utilizing Rydberg states with different inter- and intra-species interaction strengths, the proposal provides a syndrome measurement fidelity of $\mathcal{F}>0.9999$ in less than 5 $\mu$s of integration time.

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D. Petrosyan, S. Norrell, C. Poole, M. Saffman. 2024-06-11. Fast measurements and multiqubit gates in dual species atomic arrays. https://doi.org/10.1103/physreva.110.042404

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