Line Plot from Scientific Research

Decay of the Hahn-echo ( c ) fringe amplitude for each double dot with increasing number of shuttle hops, following the pulse scheme of a . Plots are normalized by the amplitude of the highest data point and are offset by 1 for clarity. A fitted exponential decay yields the indicated phase-flip probabilities. Performing the idling operation in different dots for the Ramsey and Hahn-echo sequences has no significant impact on the extracted phase-flip probability compared with the one-standard-deviation error bar (Supplementary Note VII ).

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