$\hbar$-expansion for the Schrödinger equation with a position-dependent mass
D. A. Kulikov,
V. M. Shapoval
Abstract:A recursion technique of obtaining the asymptotical expansions for the bound-state energy eigenvalues of the radial Schrödinger equation with a position-dependent mass is presented. As an example of the application we calculate the energy eigenvalues for the Coulomb potential in the presence of position-dependent mass and we derive the inequalities regulating the shifts of the energy levels from their constant-mass positions.
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