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arXiv:2110.10581 · The European Physical Journal Plus

Generalized semiconfined harmonic oscillator model with a position-dependent effective mass

C. Quesne

Published Feb 1, 2022• 16 citations
arXivHTMLPDF
DOI
10.1140/epjp/s13360-022-02444-w

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Abstract We present details of the method for constructing the coherent states of the quantum harmonic oscillator model that exhibits the semiconfinement effect due to a specific change of its mass by position. Its energy spectrum completely overlaps with the Hermite oscillator energy spectrum, whereas the wavefunctions of the stationary states are expressed via the generalized Laguerre polynomials. Two different methods have been applied to compute the coherent states. They are generalized and Barut-Girardello coherent states methods. In both cases, the exact expressions have been obtained. We also analyzed some limit cases, under which the constructed coherent states completely recover the coherent states of the Hermite oscillator.