On the Elimination of Spurious Modes in Algebraic Models of Molecular Vibrations.
Spurious states arise naturally in the description of molecular vibrational excitations. In the harmonic approximation such states can be projected out from the physical space exactly. This is in general not the case when anharmonic interactions are considered. We show that within the framework of the symmetry, adapted vibron models which include anharmonicities from the outset, these states can be removed in an exact fashion. Copyright 1999 Academic Press.
Frank
A
Instituto de Ciencias Nucleares, UNAM, Circuito Exterior, C.U., México, D.F., 04510, México
Lemus
R
Pérez-Bernal
F
Bijker
R