Low-rank Hessian optimization enables rapid closed-loop calibration of optimal-control gates, demonstrated on an amplitude-robust CZ gate on 171Yb qubits reaching 0.99902(7) fidelity after postselection.
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Numerical simulations of two-qubit superconducting systems show that non-Markovian reservoir correlations influence disentanglement dynamics and the fidelity of √iSWAP and Hadamard-CNOT gate sequences.
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High-fidelity neutral atom gates leveraging low-rank Hessian optimization
Low-rank Hessian optimization enables rapid closed-loop calibration of optimal-control gates, demonstrated on an amplitude-robust CZ gate on 171Yb qubits reaching 0.99902(7) fidelity after postselection.
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Entanglement dynamics and performance of two-qubit gates for superconducting qubits under non-Markovian effects
Numerical simulations of two-qubit superconducting systems show that non-Markovian reservoir correlations influence disentanglement dynamics and the fidelity of √iSWAP and Hadamard-CNOT gate sequences.