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Revisiting the Quantum Group Symmetry of Diatomic Molecules

Maia Angelova·Vladimir Dobrev·Alejandro Frank
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Abstract

We propose a q-deformed model of the anharmonic vibrations in diatomic molecules. We analyse the applicability of the model to the phenomenological Dunham's expansion by comparing with experimental data. Our methodology involves a global consistency analysis of the parameters that determine the q-deformed system, when compared with fitted vibrational parameters to 161 electronic states in diatomic molecules. We show how to include both the positive and the negative anharmonicities in a simple and systematic fashion.

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Maia Angelova, Vladimir Dobrev, Alejandro Frank. 2003-12-12. Revisiting the Quantum Group Symmetry of Diatomic Molecules. https://doi.org/10.1140/epjd%2Fe2004-00111-6

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