Can it calculate hyperfine structure?

[balabalabalalaba]

I like this program, can it calculate hyperfine structure?

[balabalabalalaba]

Such as the spontaneous decay from one HF state to another and the transition freqs of HF states

[nikolasibalic]

Yes, for alkali atoms, as long as there is data available (and program comes with a large compilation of literature values).
You can find examples in this notebook.
And using provided functions you can easily construct more complicated calculations.

[nikolasibalic]

Yes, for alkali atoms, as long as there is data available (and program comes with a large compilation of literature values).
You can find examples in this notebook.
And using provided functions you can easily construct more complicated calculations.

[balabalabalalaba]

Thanks for your reply. As as a user, I think it will be better if it can directly give the dipole of 2 states whose $m_j$ or $m_f$ are unknown(such as the "dipole of 2P3/2->1S1/2").

[nikolasibalic]

Hi @balabalabalalaba , thank you for feedback. That is also supported. I recommend you to check the section of documentation on calculating transitions between the states. In particular there you have reduced dipole matrix elements such as getReducedMatrixElementJ method, which might be precisely what you are searching for.