Mrm. Witwit, ENERGY-LEVELS OF THE SCHRODINGER-EQUATION FOR HYDROGEN-ATOM WITH 2 TYPES OF PERTURBATION, USING PERTURBATIVE AND NONPERTURBATIVE TECHNIQUES, Indian Journal of Pure & Applied Physics, 31(9), 1993, pp. 595-604
The energy levels of the Schrodinger equation for two potentials defin
ed by V(r) = - r-1 + 1/2 l(l + 1)r-2 + lambdar and V(r) = - r-1 + 2lam
bdar + 2lambda2r2, have been calculated by using perturbative and non-
perturbative methods for various values of lambda and the quantum numb
er n. Results of high accuracy are produced for various eigenstates.