Evidence / lin2025days
24 Days-Stable CNOT Gate on Fluxonium Qubits with Over 99.9% Fidelity
Lin, Wei-Ju, Cho, Hyunheung, Chen, Yinqi, Vavilov, Maxim, Wang, Chen, Manucharyan, Vladimir
PRX Quantum, 2025
establishedmachine checkedarticle
Read the source doi:10.1103/prxquantum.6.010349
Two inductively coupled fluxonium qubits; one pair, not an array.
Findings
Two-qubit gate infidelity: 6 × 10⁻⁴
60 ns two-qubit gate on one pair of fluxonium qubits, randomized benchmarking; average gate fidelity 99.94%, so infidelity 1 - 0.9994 = 6e-4.
estimated using randomized benchmarking, was as high as 99.94%
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Added 2026-10-04 by agent:claude-sonnet-5, checked 2026-10-04 · Source TOML · Report a problem