Fig. 3: Distribution of inter-arrival delays.
From: Synchronous detection of cosmic rays and correlated errors in superconducting qubit arrays

a A histogram of the inter-arrival distribution (3Δtcycle-bin-width) shows the observed counts (black), expected background distribution (red), and expected cosmic-ray coincidence counts (blue) (Supplementary Note 3, Qubit-detector Coincidences). The illustration of a cosmic-ray coincidence event (inset) shows a cosmogenic muon traversing the qubit array and detectors. b The 200Δtcycle-bin-width histogram of the inter-arrival distribution highlights the agreement between the expected and observed background counts (except in the central bin that also contains cosmic-ray coincidence events). Example background events (inset) include a muon or gamma ray impacting the qubit array and an unrelated cosmogenic muon traversing the detectors.