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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
Physical parameters of the intermediate age open cluster IC 1311: Clues for the theory of stellar evolution
(IOP Publishing Ltd., 1994-12)
The results of a UBVR photometric study in the field of the open cluster IC 1311 are presented. A comparison with previously published results on NGC 7044, based on measurements secured during the same observing run, leads ...
Artículo
La teoría cinética antes de Maxwell
(1999)
Son escasos los estudios sobre las teorías cinéticas formuladas antes de que las contribuciones de Maxell y Boltzmann a finales del siglo XIX, establecieran el marco teórico actual de dicha disciplina. El propósito de este ...
Artículo
Simulation study of the link between molecular association and reentrant miscibility for a mixture of molecules with directional interactions
(American Physical Society, 1999-06-28)
The reentrant liquid-liquid miscibility of a symmetrical mixture with highly directional bonding interactions is studied by Gibbs ensemble Monte Carlo simulation. The resulting closed loop of immiscibility and the corresponding ...
Artículo
Selective nuclear transparency induced by chaotic scattering
(American Physical Society, 1996-10-28)
We investigate the effects of nuclear absorption on the population of intrinsic vibrational states in scattering processes involving heavy ions. It is found that at the classical level the removal of flux assumes a ...
Artículo
Surface-induced alignment at model nematic interfaces
(American Physical Society, 1995)
We have applied the generalized van der Waals theory to a model liquid crystal that includes, explicitly, all of the second-order terms in the spherical harmonic expansion of the anisotropic intermolecular potential. We ...
Artículo
Continuous cooling of a one-dimensional bonded fluid: A Monte Carlo simulation study
(American Institute of Physics Publising LLC, 1991)
A kinetic one-dimensional bonded fluid model is formulated by extending a model for water due to Bell. The behavior of the system under continuous cooling is analyzed by use of a Monte Carlo simulation method. It shows a ...
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
Thermally driven escape over a barrier of arbitrary shape
(AIP Publishing, 1999)
The Kramers theory for the thermally activated rate of escape of a Brownian particle from a potential well is extended to a barrier of arbitrary shape. The extension is based on an approximate solution of the underlying ...