Table 1 Measured and computed parameters extracted from Si-fin transmons
Qubit# | f01 | fRO | α/2π | EJ/EC | g/2π | κ/2π | TPurcell | T1(mean) | \({T}_{2}^{* }(Ramsey)\) | Qubit Q |
|---|---|---|---|---|---|---|---|---|---|---|
(GHz) | (GHz) | (MHz) | (MHz) | (MHz) | (μs) | (μs) | (μs) | |||
1a | 5.5 | 5.675 | – | – | – | – | – | – | – | – |
2 | 4.920 | 5.731 | -270 | 46 | 98 | 1.1 | 10 | 11 | 2.6 | 350 k |
3 | 4.547 | 5.758 | -200 | 69 | 92 | 0.84 | 32 | 15 | 4.1 | 430 k |
4 | 4.713 | 5.803 | -274 | 41 | 94 | 0.90 | 23 | 20 | 4.6 | 580 k |
5 | 4.565 | 5.849 | -279 | 38 | 93 | 1.1 | 28 | 26 | 5.6 | 750 k |
6 | 4.622 | 5.893 | -273 | 40 | 96 | 1.2 | 24 | 22 | 4.8 | 650 k |
