arc.alkali_atom_functions.AlkaliAtom.getBranchingRatioFStoHFS#

AlkaliAtom.getBranchingRatioFStoHFS(jg: float, fg: float, mfg: float, je: float, mje: float, s: float = 0.5) → float[source]#

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

Parameters:

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

  • fg (float) – hyperfine basis (total atomic) angular momentum of the lower energy state

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

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

  • mje (float) – projection of the total orbital 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