Quantum defect for G9/2 states in Caesium return 0

[johnny-sa]

i.e.

Caesium().quantumDefect[1][4] = [0.0, 0.0, 0.0, 0.0, 0.0, 0.0]

I know that these have not been measured in Caesium but at the moment this gives hugely erroneous results such as

Caesium().getTransitionFrequency(17,3,3.5,17,4,4.5) returns ~43 GHz

compared to

Caesium().getTransitionFrequency(17,3,3.5,17,4,3.5) returns ~34.9 GHz

giving the G fine structure splitting as >6 GHz!

would either suggest;

• Use the empirical formula used for higher l states (H, I, etc.) to calculate this or (more easily)
• Use the same quantum defects that have been measured for the G7/2 (similar to how F7/2, F5/2 splittings are 0 at the moment.)

quick fix would be setting Caesium().quantumDefect[1][4] = [0.00703865, -0.049252, 0.01291, 0.0, 0.0, 0.0]

This doesn't appear to be an issue in other species Rb etc. I think that this row was simply omitted by mistake

[nikolasibalic]

Thank you for raising this. I've added in the commit above the suggested second solution (set QD for both states to be the same)

[nikolasibalic]

Fix released as part of ARC v3.4.0