Transmon Qubit Calculator
With this calculator you can convert between charging energy (Ec) and total capacitance (CΣ), between Josephson energy (EJ), Josephson inductance (LJ), junction critical current (Ic) or room temperature junction resistance (R), and from charging and Josephson energies calculate relevant qubit transition frequencies.
Parameter Description
Ec | Charging energy | |
CΣ | Total capacitance | |
EJ | Junction/SQUID Josephson energy | |
LJ | Junction/SQUID Josephson inductance | |
Ic | Junction/SQUID critical current | |
R | Junction/SQUID room temperature resistance for 30/40 nm thin Al films | |
ωg-e | Maximal qubit ground (g) to first excited state (e) transition frequency | |
ωe-f | Maximal qubit first (e) to second excited state (f) transition frequency | |
ωg-f | Maximal qubit ground (g) to second excited state (f) transition frequency | |
α | Qubit anharmonicity == Ec |
Formulas
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1 Comment
Thank you for providing this page!
I just understood, that I use it quite frequently, because it is convinient for simple transmons calculations.