Fast measurements and multiqubit gates in dual species atomic arrays

2024/06/11 by David Petrosyan, Sam A. Norrell, Petrosyan, D. +5 · 7 citations
Physics and Astronomy · #FOS: Physical sciences #Quantum Physics (quant-ph) #Quantum optics and atomic interactions

paper · pdf · doi:10.48550/arxiv.2406.07356

openalex publication_date 2024/06/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

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 \textsfCNOT_k gate, entangling one cesium ancilla qubit with k≥ 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 F>0.9999 in less than 5 μs of integration time.

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