arc.divalent_atom_functions.DivalentAtom.getRadialCoupling#
- DivalentAtom.getRadialCoupling(n, l, j, n1, l1, j1, s=0.5)#
Returns radial part of the coupling between two states (dipole and quadrupole interactions only)
- Parameters
n1 (int) – principal quantum number
l1 (int) – orbital angular momentum
j1 (float) – total angular momentum
n2 (int) – principal quantum number
l2 (int) – orbital angular momentum
j2 (float) – total angular momentum
s (float) – optional, total spin angular momentum of state. By default 0.5 for Alkali atoms.
- Returns
radial coupling strength (in a.u.), or zero for forbidden transitions in dipole and quadrupole approximation.
- Return type