Revisiting the quantum group symmetry of diatomic molecules
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journal contribution
posted on 2024-06-04, 10:12 authored by MN Angelova, VK Dobrev, A FrankWe propose a q-deformed model of anharmonic vibrations in diatomic molecules. We study the applicability of the model to the phenomenological Dunham expansion by comparison with experimental data. In contrast with other applications where it is difficult to find a physical interpretation for the deformation parameter, q, in our analysis it is directly related to the third-order coefficient in the Dunham expansion. We study the consistency of the parameters that determine the q-deformed system by comparing them with the vibrational terms fitted to 161 electronic states of diatomic molecules. We show how to include both positive and negative anharmonicities in a simple and systematic way. © EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2004.
History
Journal
European Physical Journal DVolume
31Pagination
27-37Location
New York, N.Y.Publisher DOI
ISSN
1434-6060Language
engPublication classification
CN.1 Other journal articleCopyright notice
2004, Springer-VerlagIssue
1Publisher
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