32 citations · 83 across the 17 of their papers we have counts for
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Perturbation theory for sextic doubly anharmonic oscillator
I. V. Dobrovolska, R. S. Tutik
A simple method for the calculation of higher orders of the logarithmic perturbation theory for bound states of the spherical anharmonic oscillator is developed. The structure of t…
A new perturbation technique for eigenenergies of the screened coulomb potential
I. V. Dobrovolska, R. S. Tutik
The explicit semiclassical treatment of the logarithmic perturbation theory for the bound-state problem of the radial Shrodinger equation with the screened Coulomb potential is dev…
Renormalization of expansions for Regge trajectories of the Schrödinger equation
D. A. Kulikov, R. S. Tutik
A recursion technique for the renormalization of semiclassical expansions for the Regge trajectories of bound states of the Schrödinger equation is developed. As an application of…
Energy spectrum of the Dirac oscillator in the Coulomb field
D. A. Kulikov, R. S. Tutik
The spectrum of the Dirac oscillator perturbed by the Coulomb potential is considered. The Regge trajectories for its bound states are obtained with the method of -expansion…
Regge trajectories of the Klein-Gordon equation with non-minimal interaction
D. A. Kulikov, R. S. Tutik
A semiclassical method of deriving Regge trajectories for the bound states of the Klein-Gordon equation with the interaction introduced in a non-minimal way is proposed. The method…