In a GaAs triple quantum dot, tuning the third dot's orbital level plus neural-network frequency feedback yields a 99.7% pi/2-gate fidelity in 4 ns (randomized benchmarking).
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High fidelity flopping-mode single spin operation with tuning inter-dot orbital levels
In a GaAs triple quantum dot, tuning the third dot's orbital level plus neural-network frequency feedback yields a 99.7% pi/2-gate fidelity in 4 ns (randomized benchmarking).