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Mostrando ítems 1-9 de 9
Artículo
Comment on “Boson-realization model for the vibrational spectra of tetrahedral molecules”
(American Physical Society, 1997)
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 ...
Artículo
A general algebraic model for molecular vibrational spectroscopy
(Elsevier, 1996)
We introduce the anharmonic oscillator symmetry model to describe vibrational excitations in molecular systems exhibiting a high degree of symmetry. A systematic procedure is proposed to establish the relation between the ...
Artículo
Accidental degeneracy and hidden symmetry: Rectangular wells with commensurate sides
(American Association of Physics Teachers, 1998)
Two-dimensional quantum square wells and rectangular billiards with commensurate sides are simple systems which exhibit accidental degeneracies. We show that a recent analysis for square wells can be similarly ...
Artículo
Artículo
Accidental degeneracy in a simple quantum system: A new symmetry group for a particle in an impenetrable square-well potential
(American Association of Physics Teachers, 1997)
The two-dimensional square-well potential is one of the simplest quantum-mechanical systems that exhibits accidental degeneracy. We show that the double degeneracy present is a consequence of a dynamical symmetry and ...
Artículo
Artículo
A symmetry adapted approach to vibrational excitations in atomic clusters
(Springer Nature, 1998)
An algebraic method especially suited to describe the strongly anharmonic vibrational spectra in molecules may be an appropriate framework to study the vibrational spectra of Na+n clusters, where nearly flat potential ...
Artículo
Tesis Doctoral
Métodos algebraicos en física molecular: el modelo de osciladores anarmónicos simetrizados (AOSM) para el estudio de la estructura vibracional y una aproximación analítica a la dispersión de electrones por moléculas polares.
(1998)
En esta Tesis se presentan los resultados del trabajo realizado durante cuatro años en el Instituto de Ciencias Nucleares de la Universidad Nacional Autónoma de México y el Departamento de Física Atómica, Molecular y Nuclear ...