[HTML][HTML] Excited state quantum phase transitions in the bending spectra of molecules

J Khalouf-Rivera, F Pérez-Bernal, M Carvajal - Journal of Quantitative …, 2021 - Elsevier
We present an extension of the Hamiltonian of the two dimensional limit of the vibron model
to encompass all possible interactions up to four-body operators. We apply this Hamiltonian …

Algebraic methods in quantum mechanics: From molecules to polymers

F Iachello, S Oss - The European Physical Journal D-Atomic, Molecular …, 2002 - Springer
Algebraic methods in quantum mechanics: from molecules to polymers Page 1 Eur. Phys. J. D
19, 307–314 (2002) DOI: 10.1140/epjd/e20020089 THE EUROPEAN PHYSICAL JOURNAL D …

The vibronically-resolved emission spectrum of disulfur monoxide An algebraic calculation and quantitative interpretation of Franck–Condon transition …

T Müller, PH Vaccaro, F Pérez-Bernal… - The Journal of chemical …, 1999 - pubs.aip.org
Emission spectra obtained from jet-cooled disulfur monoxide (S 2 O) molecules have been
interpreted by means of a novel Lie algebraic formalism that makes possible the facile …

An extended SU (2) model for coupled Morse oscillators

M Carvajal, R Lemus, A Frank, C Jung, E Ziemniak - Chemical Physics, 2000 - Elsevier
The SU (2) vibron model has been shown to correspond to an approximation where only the
dominant Δv=±1 interaction between Morse oscillators is taken into account [A. Frank, R …

Simulation of the Raman spectra of CO2: Bridging the gap between algebraic models and experimental spectra

R Lemus, M Sánchez-Castellanos… - The Journal of …, 2014 - pubs.aip.org
The carbon dioxide Raman spectrum is simulated within an algebraic approach based on
curvilinear coordinates in a local representation. The two main advantages of the present …

Generalized and Gaussian coherent states for the Morse potential

M Angelova, V Hussin - Journal of Physics A: Mathematical and …, 2008 - iopscience.iop.org
In this paper, we consider the one-dimensional anharmonic oscillator, which represents well
the anharmonic vibrations in diatomic molecules. For the description of the associate …

SU (2) approximation to the coupling of Morse oscillators

A Frank, R Lemus, M Carvajal, C Jung… - Chemical physics …, 1999 - Elsevier
We show that the SU (2) vibron model automatically gives the correct coupling between
Morse oscillators as long as they only interact via the dominant Δv=±1 selection rule. We …

Spectroscopic description of H2O in the su (2) vibron model approximation

R Lemus, M Carvajal, JC López-v, A Frank - Journal of Molecular …, 2002 - Elsevier
The spectroscopic description of the vibrational excitations of the H216O molecule is
presented in the framework of the su (2) vibron model approximation. Both Darling …

Spectroscopy and predissociation of the 3A2 electronic state of ozone 16O3 and 18O3 by high resolution Fourier transform spectrometry

AJ Bouvier, G Wannous, S Churassy, R Bacis… - … Acta Part A: Molecular …, 2001 - Elsevier
A high resolution Fourier transform spectrometry analysis of the rotational structure of the
201 absorption bands of the 3A2← X ̃ 1A 1 Wulf transition for the isotopomers 16O3 and …

Assigning vibrational polyads using relative equilibria: application to ozone

IN Kozin, DA Sadovskii, BI Zhilinskii - Spectrochimica Acta Part A …, 2005 - Elsevier
We demonstrate how relative equilibria of a vibrating molecule, which are families of
principal periodic orbits otherwise known as nonlinear normal modes, can be used to …