Table 1 Summary of system parameters
From: Calibrating quantum gates up to 52 qubits in a superconducting processor
Parameters | Mean | Median | SD |
|---|---|---|---|
Qubit maximum frequency (GHz) | 5.504 | 5.504 | 0.093 |
Qubit idle frequency (GHz) | 5.411 | 5.403 | 0.104 |
Qubit anharmonicity (MHz) | −243 | −242 | 4 |
T1 at idle frequency (μs) | 22.14 | 22.11 | 7.60 |
\({T}_{2}^{* }\) at idle frequency (μs) | 4.94 | 4.55 | 3.24 |
Readout \({e}_{| 0\left.\right\rangle }\) (%) | 1.03 | 0.90 | 0.72 |
Readout \({e}_{| 1\left.\right\rangle }\) (%) | 3.82 | 3.43 | 1.64 |
1Q XEB e1 (%) | 0.31 | 0.24 | 0.18 |
2Q-CZ XEB e2 (%) | 3.35 | 3.21 | 0.98 |
