Fig. 5: T1, T2*, and T2e of each qubit of a multi-qubit chip with Ta film.
From: Towards practical quantum computers: transmon qubit with a lifetime approaching 0.5 milliseconds
a T1 (blue), T2* (red), and T2e (green) characterization results of a 56-qubits chip fabricated with the same processes described here. (b−d) are histograms of the T1, T2*, and T2e of all the qubits in the chip, respectively.
