Vol 3 - Landau, Lifshitz - Quantum mechanics - non-relativistic theory (3ed., 1991) · Problem 84.2

The Diatomic Molecule

Physics — Landau & Lifshitz · doublet-term-intermediate-coupling

Problem

Determine the energy of a doublet term (with

\Lambda \neq 0

) for cases intermediate between

a

and

b

(E. Hill and J. H. van Vleck 1928).