Q-deformed SU (1, 1) × O (4) spectra of diatomic molecules

Abstract

The quantum groups SU q (1, 1) and SU q (2) are used to describe the rotation-vibration spectra of diatomic molecules which have q-deformed SU (1, 1) × O (4) dynamic symmetry with a Hamiltonian similar to that in the O (4)-limit chain of the vibron model developed by Iachello and Levine. The result provides a better fit of the rotation—vibration spectrum of H 2.