Comment on "Boson-realization model for the vibrational spectra of tetrahedral molecules"
Description
An algebraic model in terms of a local harmonic boson realization was recently proposed to study molecular vibrational spectra [Zhong-Qi Ma et al., Phys. Rev. A 53, 2173 (1996)]. Because of the local nature of the bosons the model has to deal with spurious degrees of freedom. An approach to eliminate the latter from both the Hamiltonian and the basis was suggested. We show that this procedure does not remove all spurious components from the Hamiltonian and leads to a restricted set of interactions. We then propose a scheme in which the physical Hamiltonian can be systematically constructed up to any order without the need of imposing conditions on its matrix elements. In addition, we show that this scheme corresponds to the harmonic limit of a symmetry-adapted algebraic approach based on u(2) algebras.
Abstract
European Community CI1*-CT94-0072
Abstract
DGAPA Universidad Nacional Autónoma de México IN105194
Abstract
CONACyT-México 400340-5-3401E
Abstract
Dirección General de Investigación Científica y Técnica PB95-0533
Additional details
- URL
- https://idus.us.es/handle//11441/85347
- URN
- urn:oai:idus.us.es:11441/85347
- Origin repository
- USE