Deformed ladder operators for the generalized one- and two-mode squeezed harmonic oscillator in the presence of a minimal length

F. A. Dossa   ; G. Y. H. Avossevou

Teoretičeskaâ i matematičeskaâ fizika, Tome 211 (2022) no. 1, pp. 105-120

Résumé

We construct the deformed ladder operators in the presence of a minimal length to study the one- and two-mode squeezed harmonic oscillator. The generalized Hamiltonian of the system is expressed in terms of a deformed $su(1,1)$ algebra. The realizations of this algebra allow us to convert the purely quantum mechanical problem of the model into a differential equation. By means of the Nikiforov–Uvarov method, the energy eigenvalues are obtained and the corresponding wave functions, in the momentum space, are expressed in terms of hypergeometric functions. Our study shows that the domain of existence of the energy levels is extended and this extension is due to the deformation parameter.

Détail

Keywords: harmonic oscillator, minimal length, ladder operators, deformed $su(1,1)$ algebra.

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