Volume 88, Number 4, November 2009
|Number of page(s)||5|
|Published online||24 November 2009|
Removing degeneration from a WKB explicit formula for bound states
Dipartimento di Fisica “Michelangelo Merlin”, Università di Bari - via Amendola 173, 70126 Bari, Italy, EU and INFN, Sezione di Bari - Bari, Italy, EU
Corresponding author: firstname.lastname@example.org
Accepted: 23 October 2009
In this paper we improve a previously established three-dimensional WKB formula of asymptotic nature, which holds when the radial quantum number tends to infinity: a more accurate evaluation of the roots of the WKB integrand yields indeed lower order contributions, which depend on the azimuthal quantum number and remove the degeneration of the energy levels. Improvement of the convergence to the usual WKB eigenvalues is also verified in a number of cases.
PACS: 03.65.Ge – Solutions of wave equations: bound states / 03.65.Sq – Semiclassical theories and applications
© EPLA, 2009
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