arc.divalent_atom_functions.DivalentAtom.getQuantumDefect#

DivalentAtom.getQuantumDefect(n, l, j, s=0.5)#

Quantum defect of the level.

For an example, see Rydberg energy levels example snippet.

Parameters

  • n (int) – principal quantum number

  • l (int) – orbital angular momentum

  • j (float) – total angular momentum

  • s (float) – (optional). Total spin angular momentum. Default value of 0.5 correct for Alkali atoms. For divalent atoms it has to be explicitly defined.

Returns

quantum defect

Return type

float