Revisiting the quantum symmetries of diatomic molecules

Angelova, Maia, Frank, A. and Dobrev, Vladimir (2004) Revisiting the quantum symmetries of diatomic molecules. European Physical Journal D, 31 (1). pp. 27-37. ISSN 1434-6060

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A new quantum-deformed model of anharmonic vibrations of diatomic molecules is proposed leading to the phenomenological Dunham expansion. The q-deformation of a general Hamiltonian is constructed from generators of the quantum group deformation of the algebra su(2). In different approximations it leads to Morse or Dunham results. The model parameters are obtained in terms of the experimental molecular constants which simplifies the applications. A novel physical interpretation for the deformation parameter q is obtained related to the third-order coefficient in the Dunham expansion. This work is supported in part by research grants from the Bulgarian NCSR F-1205/02 and CONACyT, Mexico.

Item Type: Article
Subjects: F300 Physics
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: EPrint Services
Date Deposited: 19 Nov 2008 14:55
Last Modified: 12 Oct 2019 22:55

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