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Relative convergences of the WKB and SWKB approximations. (English) Zbl 0774.65064
The author investigates the relative convergences of WKB and supersymmetric WKB (SWKB) approximations. The eigenenergies for four potentials by one- and two-term WKB and SWKB approximations (in order to obtain a better evidence) are calculated.
Reviewer: I.Grosu (Iaşi)
MSC:
65L15Eigenvalue problems for ODE (numerical methods)
34E20Asymptotic singular perturbations, turning point theory, WKB methods (ODE)
34L15Eigenvalues, estimation of eigenvalues, upper and lower bounds for OD operators
81T60Supersymmetric field theories
34L40Particular ordinary differential operators
81Q05Closed and approximate solutions to quantum-mechanical equations