The algebra eigenstates method for some systems with spin-like interactions

International audience; An extension of the algebra eigenstates formalism is proposed to solve the eigenvalue equation for a class of problems involving "spin interactions". The method is detailed for the harmonic oscillator, su(2) and su(1, 1) algebras. Special emphasis is given to the resolution of problems in vibronic spectroscopy involving doubly degenerate electronic states.

The Algebra Eigenstates Method Applied to Some Jahn-Teller Systems.

Exactly Solvable Effective Models for E x e and G'x e Dynamical Jahn-Teller Systems.

Calculs variationnels globaux et approche algébrique pour les états ro-vibrationnels très excités des molécules diatomiques