Midcircuit Operations Using the omg Architecture in Neutral Atom Arrays

Lis, Joanna W., Senoo, Aruku, McGrew, William F., Rönchen, Felix, et al. · 2023 · Physical Review X

| 编号 NA155 | 主题 实验架构与容错 | DOI 10.1103/physrevx.13.041035 |

摘要

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2023 · Physical Review X We implement mid-circuit operations in a 48-site array of neutral atoms, enabled by new methods for control of the $\text{omg}$ (optical-metastable-ground state qubit) architecture present in ${}^{171}$Yb. We demonstrate laser-based control of ground, metastable and optical qubits with average single-qubit fidelities of $F_g=99.968(3)$, $F_m=99.12(4)$ and $F_o=99.804(8)$. With state-sensitive shelving between the ground and metastable states, we realize a non-destructive state-detection for ${}^{171}$Yb, and reinitialize in the ground state with either global control or local feed-forward operations. We use local addressing of the optical clock transition to perform mid-circuit operations, including measurement, spin reset, and motional reset in the form of ground-state cooling. In characterizing mid-circuit measurement on ground-state qubits, we observe raw errors of $1.8(6)\%$ on ancilla qubits and $4.5(1.0)\%$ on data qubits, with the former (latter) uncorrected for $1.0(2)\%$ ($2.0(2)\%$) preparation and measurement error; we observe similar performance for mid-circuit reset operations. The reported realization of the $\text{omg}$ architecture and mid-circuit operations are door-opening for many tasks in quantum information science, including quantum error-correction, entanglement generation, and metrology.

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