Fig. 2: Correlated charge jump magnitudes between qubit pairs depend on distance and shielding.
From: Measurement of correlated charge noise in superconducting qubits at an underground facility
a Jump magnitudes 0.1e≤∣Δq∣≤0.5e, in units of electric charge e, for all qubit pairs. S.C. data is shown as x’s and S.O. data is shown as dots. The raw data retains sign information, but only magnitude ∣Δq∣ is presented here for visual clarity. Non-correlated events are omitted, also for visual clarity. b Micrograph of the qubit chip, annotated with false colors to match the plot axes.
