We implement mid-circuit operations in a 48-site array of neutral atoms, enabled by new methods for control of the omg (optical-metastable-ground state qubit) architecture present in 171Yb. We demonstrate laser-based control of ground, metastable and optical qubits with average single-qubit fidelities of Fg=99.968(3), Fm=99.12(4) and Fo=99.804(8). With state-sensitive shelving between the ground and metastable states, we realize a non-destructive state-detection for 171Yb, 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 omg architecture and mid-circuit operations are door-opening for many tasks in quantum information science, including quantum error-correction, entanglement generation, and metrology.
Cite
@article{arxiv.2305.19266,
title = {Mid-circuit operations using the omg-architecture in neutral atom arrays},
author = {Joanna W. Lis and Aruku Senoo and William F. McGrew and Felix Rönchen and Alec Jenkins and Adam M. Kaufman},
journal= {arXiv preprint arXiv:2305.19266},
year = {2023}
}