Midcircuit Operations Using the omg Architecture in Neutral Atom Arrays
By Joanna W. Lis, Aruku Senoo, W. McGrew, Felix Rönchen, Alec Jenkins, A. Kaufman. Physical Review X, 2023
140 citations recorded by the source corpus.
We implement mid-circuit operations in a 48-site array of neutral atoms, enabled by new methods for control of the $\textit{omg}$ (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 $\textit{omg}$ architecture and mid-circuit operations are door-opening for many tasks in quantum information science, including quantum error-correction, entanglement generation, and metrology.
Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics
View Paper: https://www.semanticscholar.org/paper/f657b479397fa5cce3c2fbe0d4c87dbae39c3182
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Citations in the corpus
- Logical quantum processor based on reconfigurable atom arrays (2023, methodology): “…scaling will benefit from improving encoding efficiency, for example, by using quantum low-density-parity-check codes 55,56 , using erasure conversion 13,33,57 or noise bias 35 and optimizing the choice of (possibly several) atomic species 11,14,47 , as well as advanced optical controls 34 .”