arc.alkali_atom_functions.AlkaliAtom.getBranchingRatioHFStoFS#

AlkaliAtom.getBranchingRatioHFStoFS(jg: float, mjg: float, je: float, fe: float, mfe: float, s: float = 0.5) → float[source]#

Branching ratio for decay from \(\vert j_e,f_e,m_{f_e} \rangle \rightarrow \vert j_g,m_{j_g} \rangle\)

Parameters:

  • jg (float) – total orbital angular momentum of the lower energy state

  • mjg (float) – projection of the total orbital angular momentum of the lower energy state

  • je (float) – total orbital angular momentum of the higher energy state

  • fe (float) – hyperfine basis (total atomic) angular momentum of the higher energy state

  • mfe (float) – projection of the total angular momentum of the higher energy state

  • s (float, optional) – total spin angular momentum of the states. By default 0.5 for Alkali atoms.

Returns:

branching ratio

Return type:

float