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- W4318067504 abstract "We revisit the problem of the deformed oscillator with position-dependent mass [da Costa et al., J. Math. Phys. {bf 62}, 092101 (2021)] in the classical and quantum formalisms, by introducing the effect of the mass function in both kinetic and potential energies. The resulting Hamiltonian is mapped into a Morse oscillator by means of a point canonical transformation from the usual phase space $(x, p)$ to a deformed one $(x_gamma, Pi_gamma)$. Similar to the Morse potential, the deformed oscillator presents bound trajectories in phase space corresponding to an anharmonic oscillatory motion in classical formalism and, therefore, bound states with a discrete spectrum in quantum formalism. On the other hand, open trajectories in phase space are associated with scattering states and continuous energy spectrum. Employing the factorization method, we investigate the properties of the coherent states, such as the time evolution and their uncertainties. A fast localization, classical and quantum, is reported for the coherent states due to the asymmetrical position-dependent mass. An oscillation of the time evolution of the uncertainty relationship is also observed, whose amplitude increases as the deformation increases." @default.
- W4318067504 created "2023-01-26" @default.
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- W4318067504 date "2023-01-01" @default.
- W4318067504 modified "2023-09-24" @default.
- W4318067504 title "Exact solution and coherent states of an asymmetric oscillator with position-dependent mass" @default.
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- W4318067504 doi "https://doi.org/10.1063/5.0094564" @default.
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