Generalized spiked harmonic oscillator

Details Generalized spiked harmonic oscillator Generalized spiked harmonic oscillator

2001-01-05

arxiv.org/abs/math-ph/0101006v1

J. Phys. A 34, 1169 (2001)

Physics

Mathematical Physics

14 pages

Scientific paper

10.1088/0305-4470/34/6/308

A variational and perturbative treatment is provided for a family of generalized spiked harmonic oscillator Hamiltonians H = -(d/dx)^2 + B x^2 + A/x^2 + lambda/x^alpha, where B > 0, A >= 0, and alpha and lambda denote two real positive parameters. The method makes use of the function space spanned by the solutions |n> of Schroedinger's equation for the potential V(x)= B x^2 + A/x^2. Compact closed-form expressions are obtained for the matrix elements , and a first-order perturbation series is derived for the wave function. The results are given in terms of generalized hypergeometric functions. It is proved that the series for the wave function is absolutely convergent for alpha <= 2.

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